variants or less commonly hotbox
hot-boxed also hotboxed; hot-boxing also hotboxing; hot-boxes also hotboxes
1
transitive + intransitive slang : to smoke marijuana in a small, enclosed space (such as a car) in order to inhale the secondhand smoke trapped inside the space
Recreational weed had just been legalized, so we'd get takeout ramen and hotbox her room …Lauren Colella
In several cases, a guard investigating an odor in the parking lot will find a group "hot boxing" in a smoke-filled car.Manuel Gamiz Jr.
2
transitive slang : to break wind in (an enclosed space) or near (someone in an enclosed space)
Imagine being stuck on a 12-hour flight with an old man hot-boxing you …Stephen Colbert, speaking on The Late Show
Dogs have been hotboxing the car with their farts.@texasbreakfast1, on X, formerly Twitter

hot box

2 of 2

noun

variants or less commonly hotbox
plural hot boxes also hotboxes
1
: a journal (see journal entry 1 sense 3) bearing (as of a railroad car) overheated by friction
2
: a small room or enclosed space that is very hot
I complain when my husband tries to raise the thermostat to 70 from my preferred 65. It's a freaking hot box@AmyBeePhoenix, on X, formerly Twitter
With the air conditioning turned off for the weekend, the sixth-floor Financial District office had turned into a 130-degree hotbox.Rashi Shrivastava
3
hot box : a portable machine with a chamber that keeps asphalt hot and workable for use
Now the Milwaukee Brewers are chipping in to fix the city's never-ending pothole problem, after the city's public works committee accepted $27,500 from the organization to pay for a large-capacity asphalt hot box to repair potholes.Vanessa Swales
4
slang : an enclosed space filled with smoke and especially marijuana smoke
… the place was already packed to bursting with avid marijuana enthusiasts. I smelled it as I walked in, but by the time I found my seat, I was inside the world's most enormous hot box.Jeff Napier

Word History

First Known Use

Verb

1994, in the meaning defined at sense 1

Noun

1848, in the meaning defined at sense 1

Time Traveler
The first known use of hot-box was in 1848

Browse Nearby Words

Cite this Entry

“Hot-box.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hot-box. Accessed 26 Aug. 2026.

Kids Definition

: a bearing (as of a railroad car) overheated by friction
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