fart grenade 

A Widely used tactic in the bed, casually used like this:
1. pretend you are holding a grenade
2. fart in your pretend grenade
3. hover your grenade over the victims nose.
watch his/her's reaction.

A unsuspected fart grenade was used in bed.
Jerry: grenade!
Kiersten: what?
Kiersten: Eww!
Jerry: GOTY!
Kiersten: It smells like a gas chamber!

fart grenade by [InsertXboxLiveGamertagHere] November 16, 2019

fart grenade 

Farting in ones hand while keeping it contained and putting it in someones face.

Andy's fart grenade made Josh pass out

fart grenade by Andrew Stump June 28, 2005

fart grenade 

when u fart into ur hand and throw it at some1

my tita threw a fart grenade at me and my cuzzos

fart grenade by pillzbury dough boi December 21, 2006

Fart Grenade 

When you fart into a pair of clean balled up socks and throw them at someone.

the conversation was interrupted by mooses fart grenade.

Fart Grenade by mu shin September 11, 2019