When you eat something that you know is gonna fuck your stomach up later, particularly really spicy food.
Randy: damn man, I just polished off a pile of the hottest chicken wings they got!
Brian Cropp: sounds like you just pulled the pin on a genuine ass grenade!!!
Brian Cropp: sounds like you just pulled the pin on a genuine ass grenade!!!
by LiquorCaptain May 20, 2022

When you get stuck posing with the fat girl on your knee in a group photo. Afterwards the knee looks like a swaybacked horse.
Alpha male- "Dude, thanks for being my wingman, sorry about that grenade knee."
Beta male- "Okay, Bro, but next time you get the grenade knee."
Alpha male *under his breath* "Yeah, right."
Beta male- "Okay, Bro, but next time you get the grenade knee."
Alpha male *under his breath* "Yeah, right."
by wifeofashlong December 29, 2018

When a girl gives you such bad blue balls, that the semen backs up, thereforeaking your dick and balls explode
by Ethan Vans December 20, 2016

joel benjey bc he plays hockey so he thinks he’s canadian. he also loves to sword fight in the locker room with fellow team mates.
by iminyourmomsdreams September 27, 2021

A large group of unattractive girls, to be avoided at all costs. Directly related the party's Grenade Point Average.
I got invited to the engineering sorority's party the other day, and EVERY SINGLE CHICK WAS A GRENADE. It was a BANDOLEER of grenades...
by flamingzebra90 October 19, 2010

by Simone De' Salome October 15, 2019

An incredibly jaw dropping statement guaranteed to bring any conversation to a screeching halt. Such as randomly dropping a slur or extreme political position.
"Hey did you remember last night when James made that conversational grenade of a joke?"
"Yeah he definitely went too far."
"Yeah he definitely went too far."
by JSmith4129 October 22, 2022
