It is October. A flyer lands in your bag. It says, “Join our trunk or treats!” You stop. Is that right? Should it be “trunk or treat”? Does it need dashes? And what is it, anyway?
You are not alone. Each fall, many people search for “trunk or treats.” Some want to know what the event is. Others want to know how to spell it. Many just want to write a flyer or email and not look silly.
The confusion is easy to see. The phrase sounds like “trick or treat,” but it is not the same. It is new. Dictionaries do not agree on it. And people add an “s,” a hyphen, or both.
This guide fixes that. You will get a quick answer first. Then you will learn where the phrase came from, how US and UK words differ, and which form to use. You will also see common mistakes, real examples, and a list of FAQs.
Read on. In a few minutes, you will know exactly what to write.
Trunk or Treats Quick Answer
A trunk or treat is a Halloween event. The best way to write it is “trunk or treat,” with no “s.”
People park their cars in a lot. They open the trunks and decorate them. They fill them with candy. Kids walk from car to car and collect treats.
Use “trunk or treats” only when you mean more than one event.
Examples:
- “The school trunk or treat starts at 6 p.m.”
- “We are decorating our car for the trunk or treat.”
- “The town has three trunk or treats this year.”
The Origin of Trunk or Treats
The phrase is a pun. “Trick or treat” is the classic Halloween call. Someone swapped “trick” for “trunk.” The trunk is the storage space at the back of a car.
The idea grew in the United States. Churches and schools helped it spread. Parents wanted a safe place for kids to get candy. A parking lot has good light, a crowd, and no busy road. Many people place the start of the trend in the 1990s and 2000s. No one source proves the exact date or place.
Why do spellings differ? The phrase is young. It is mostly spoken. People write it the way they hear it. Some add a hyphen. Some add an “s” because they think of many treats. No official rule set one form. So writers guess.
British English vs American English Spelling
Here is the good news. There is no true spelling split for this phrase. Every word is spelled the same in both versions.
The real difference is the word “trunk.” In American English, a trunk is the back storage space of a car. In British English, it is a “boot.” So in the UK, some people say “boot or treat.”
| Feature | American English | British English |
| Back of the car | Trunk | Boot |
| Event name | Trunk or treat | Trunk or treat, or “boot or treat” |
| Spelling of “treat” | Treat | Treat |
| Hyphens | Optional | Optional |
| How common | Very common | Growing |
Which Spelling Should You Use?
Pick the form that fits your reader.
- US readers: Use “trunk or treat.” It is the form people know best.
- UK and Commonwealth readers: Use “trunk or treat.” If your readers say “boot,” add it once: “trunk or treat (also called boot or treat).”
- Global readers: Use “trunk or treat” and explain it in one line: “Trunk or treat is a Halloween event where people hand out candy from car trunks.”
- Formal writing: Use “trunk or treat” with no hyphen, unless your style guide says otherwise.
Simple rule: Drop the “s.” Keep it only for many events.
Common Mistakes with Trunk or Treats
1. Adding a wrong “s”
- Wrong: “We are going to the trunk or treats.”
- Right: “We are going to the trunk or treat.”
2. Mixing it up with “trick or treat”
- Wrong: “The church is hosting a trick or treat in the parking lot.”
- Right: “The church is hosting a trunk or treat in the parking lot.”
3. Typing “of” instead of “or”
- Wrong: “Trunk of treat starts at six.”
- Right: “Trunk or treat starts at six.”
4. Using the wrong verb form
- Awkward: “We trunk or treated.”
- Better: “We went trunk or treating.”
5. Changing the form mid-text
- Pick one form. Use it every time.
Trunk or Treats in Everyday Examples
Email:
“Hi families, our school trunk or treat is on Oct. 30. Please sign up to decorate a trunk.”
News headline:
“Town Hosts Trunk or Treat for a Safe Halloween”
Social media:
“Our trunk is ready! Who’s coming to the trunk or treat tonight? 🎃 #trunkortreat”
Formal writing:
“The community center will hold its annual trunk or treat. Volunteers will watch the parking area from 5 p.m. to 7 p.m.”
Flyer:
“Join our trunk or treat! Wear a costume. Bring a bag. Free candy for all kids.”
Trunk or Trea+ts Google Trends & Usage Data
Search interest follows a clear season. It stays low for most of the year. It begins to rise in September, reaches its peak in October, and then drops quickly after Halloween.
By country: Interest is strongest in the United States, where the event is most common. Canada also shows interest. Smaller amounts appear in places where Halloween is growing, such as the UK and Australia.
By context: People usually search for three things:
- What trunk or treat means
- Ideas to decorate a trunk
- Events near them
“Trunk or treats” gets fewer searches than “trunk or treat.” It still appears, often because people type it by habit or look for many events.
Tip: For exact numbers, open Google Trends. Compare both forms over the past five years.
Keyword Variations Side by Side
| Variation | Correct? | How common | Best use |
| Trunk or treat | Yes | Most common | All writing |
| Trunk-or-treat | Yes | Common | Before a noun: “a trunk-or-treat night” |
| Trunk or treats | Sometimes | Less common | Many events |
| Trunk or treating | Yes | Common | The action |
| Trunk of treat | No | Rare | Avoid; it is a typo |
| Trick or treat | Yes, but different | Very common | Door-to-door candy |
FAQs
What is a trunk or treat?
It is a Halloween event. People decorate car trunks and give out candy in a parking lot.
Is it “trunk or treat” or “trunk or treats”?
“Trunk or treat” is best. Use “trunk or treats” only for more than one event.
How is it different from trick or treat?
Trick or treat is door to door. Trunk or treat is car to car in one place.
Do I need hyphens?
No. Use them when the phrase describes a noun, like “a trunk-or-treat event.”
Is trunk or treat only in the US?
It began in the US and is most common there. It is spreading to other countries.
What do people say in the UK?
Some say “boot or treat,” since “boot” is the UK word for trunk. Many still say “trunk or treat.”
Why do people host these events?
They are easy and safe. Families stay in one lit area. Kids of all ages can join.
Is it only for churches?
No. Schools, towns, businesses, and neighbors host them too.
Conclusion
Let’s sum it up. A trunk or treat is a Halloween event. People park in a lot, decorate their trunks, and hand out candy. Kids walk from car to car.
The best form is “trunk or treat,” with no “s.” Use “trunk or treats” only for more than one event. A hyphen is fine when the phrase describes a noun, like “a trunk-or-treat night.” Otherwise, skip it.
There is no true US versus UK spelling fight. The only real gap is the word “trunk.” In the UK, people say “boot,” so you may see “boot or treat.” If your readers may not know the event, add one short line to explain it.
Avoid the big mistakes. Do not mix it up with “trick or treat.” Do not write “trunk of treat.” Pick one form and stick with it.
Interest peaks in October, so post early. Give the date, time, and place. Keep words simple. Now you can write with confidence. Happy Halloween!
“I’m Ibadat Fatima, a professional content writer and author with 3 years of experience in writing, editing, and storytelling. I share my work through visitlivo.com, where I help readers connect with clear, engaging, and well-crafted content.”
