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Grenaded From Behind 

The art of sticking ones testicles in another persons anus.
Ew! Did you hear about arrans sister? she was grenaded from behind! That shit is nasty...

Clam Grenade 

The act of muckin bin so violently that you purposefully force air into the vagina in order to intentionally detonate a queef later on during the performance.
Adam, in an act of true passion, had his glasses blown clean off his head while clam grenading Kelly last night

I clam grenaded Gina so hard last night that she blew the covid out my lungs

Timmy couldn’t wait to clam grenade Alison during his first oral experience. He was amazed that her box went off like it had a hair pin trigger
Clam Grenade by MuckleberryBin January 9, 2022

grenade factory

(n) - a term used to describe a place/area where there is a high number of grenades or grenade launchers or where the grenades simply out number the hot chicks. This term is used in the same manner that "cockfest" would be used to describe a gathering of moslty dudes.
So how was the party last night bro? -It sucked, it was a total "grenade factory," so we left quick.
grenade factory by D-Rod928 September 7, 2010

The Holy Hand Grenade of Antioch 

A Reading from the Book of Armaments, Chapter 4, Verses 16 to 20:

Then did he raise on high the Holy Hand Grenade of Antioch, saying, "Bless this, O Lord, that with it thou mayst blow thine enemies to tiny bits, in thy mercy." And the people did rejoice and did feast upon the lambs and toads and tree-sloths and fruit-bats and orangutans and breakfast cereals ... Now did the Lord say, "First thou pullest the Holy Pin. Then thou must count to three. Three shall be the number of the counting and the number of the counting shall be three. Four shalt thou not count, neither shalt thou count two, excepting that thou then proceedeth to three. Five is right out. Once the number three, being the number of the counting, be reached, then lobbest thou the Holy Hand Grenade in the direction of thine foe, who, being naughty in my sight, shall snuff it."
King Arthur: Right. One... two... five.
Galahad: Three, sir.
King Arthur: Three.

Irish Hand Grenade 

A mixed drink typically drunk on St. Patrick's Day, made and drunk like so.
1. Fill a pint glass halfway with a stout such as Guiness.
2. Fill two shot glasses, one with Irish cream such as Baileys and one with Irish whiskey such as Jameson and set them both inside the top of the glass so that they wedge against each other.
3. Pull out the shot of Irish whiskey like you would the pin of a hand grenade and down the shot. The shot of Irish cream will fall in to the stout. Down that next.
"Sure do love these Irish Hand Grenades. Just wish it wasn't so fucking awkward."
Irish Hand Grenade by Aelle February 6, 2019

poop grenade

This is the result of explosive diarrhea - it looks like a poop grenade detonated!
What a mess in here did a poop grenade go off?
poop grenade by I, Wreckerrr December 24, 2020
More from Urban Dictionary
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

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
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