shit grenade 

a piece of shit that is flung across a room at high speed and hits a fan and explodes on everyone.

dude wtf that shit grenade almost hit me!!

shit grenade by harrison kass December 28, 2007

Shit Grenade 

to punch someone in there ass hole during sex

i gave her the worst shit grenade of her life

Shit Grenade by Shit Grenade August 3, 2007

shit grenade 

When someone shits in the toilet and most of the poop ends up under the seat on the back of the bowl as poop shrapnel.

Chris went to make mud in the bathroom at work, and noticed that someone had pulled the pin on a shit grenade.

shit grenade by PETR FITZWELL May 11, 2009

shitgrenade 

a person who dont set all the way down on the commode lid and shit splatters everywhere and back on his ass for all to smell

man that drunk is a shitgrenade

shitgrenade by meanoandc November 2, 2006