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Boat Smoke 

Boat smoke is the exhaust gas that comes out of a 2 stroke motor that is common to many pontoon boats. This exhaust gas cloud typically has a bluish tint that typically emits as a motor is started up or fast acceleration takes place. A humid, hot day with minimal or no air movement will cause a boat smoke cloud to form over the water or in coves on the lake. “2 stroke smoke hangs around!”
Many educated people would mistake a cloud over water for fog but in reality it is just boat smoke.
Boat Smoke by BOATSMOKE April 20, 2018
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smoke a boat 

The act of smoking meth or another item in tin foil. Often referred to as a boat because of the canoe shape the foil makes when folded.
High tweaking blazing smoking boatsmoke a boat Tooter crizzi
smoke a boat by lilmikey March 10, 2014

Smoking a boat 

A Boat is another term for PCP. PCP is some nasty shit. Don't take it. ever.
Guy: Hey man, wanna smoke a boat?

Me: Nah man, I'm all weed, I don't do hard shit like you

Guy: Come on man, you'd love smoking a boat...

Me: Fuck off crack head.
Smoking a boat by FlaTLiN3D September 2, 2009

batsmoke 

any form of rolled smokeable or cigarette that is so sublimely "packed" as to allow an (easily foldable) excess of paper at the tip. Once this tip is folded once inward, a batman-like hat is apparent.
Friend #1: Dude, I'm pretty stressed. Can I bum a smoke?

Friend #2: My man, not only can you have a smoke... I bequeath unto thee a batsmoke !! folds the tip as mentioned and hands his friend the righteous smokeable.
The smoke from the vigorous friction from buttsex!
Damn I lit this girls butt up ! She had mad bootsmoke!
bootsmoke by Jmaktheknife April 1, 2018
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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