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A type of duct burner installed aft of the exhaust manifold, but before the turbocharger in the exhaust gas path of a turbocharged internal combustion engine. Produces gas flow which provides for turbocharger spinup during periods of low engine load
Dude, that car is a'smokin. It must have reheat.
reheat by pitz September 6, 2004
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Reheat the Skin 

When a group of guys who just recently masturbated around each other, decide to masturbate again
Hey guys, I'm thinking it's time to reheat the skins
Reheat the Skin by dirtymindedfreak February 21, 2011

Reheat a biscuit 

I hate when I get so drunk that I reheat a biscuit.

Elmira Reheat 

The art of putting one's partner's head in a microwave during sex, then thrusting while slamming the door repeatedly
Richard gave Susan the old Elmira Reheat after a long night at the bar
Elmira Reheat by Richard_12345 January 8, 2016

long, deep, fast, and repeatedly 

long, deep, fast, and repeatedly — A skill attributed to a man who is capable of using both a knife and his penis in the exact same way. A warrior in the streets and a master in the sheets; he gets to the battle early and is definitely the last and only one to leave. If you are a woman he may call you back; and, if you are a man he will call the meat wagon and tell them where your body is cooling and to come and pick you up before you start to stink.

This type of character was best captured by Walter Mosley in the person of Raymond “Mouse” Alexander in his Easy Rawlins stories.
Watch out for the men from North Carolina; they will bring a knife to a fist fight and cut you long, deep, fast, and repeatedly. And the women say that they fuck the exact same way. They are bad motherf*ckers.

Reheapification 

The process by which one simplifies a heap tree.
Professor: "You simplify a Heap Tree with reheapification."
Student: "Wait, did you /just/ make that up?"
Reheapification by All That Jazz March 31, 2009
This refers to when you beat up someone that you had already beat up recently.
I knocked that asshole the fuck out and then i shouted at his unconscious cunt to apologize!..but he did not answer so i had to rebeat his stupid ass!!
Rebeat by ZCMC March 10, 2009
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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