Top Definition
feces, shit, crap, turd, dung...whatever else you would like to refer it as.
"I just about blew the toilet up when I tried to flush that rectal grenade."

"If you don't shut the hell up, I'm going to hold you down and drop a rectal grenade in your mouth!"

"I just had the biggest rectal grenade come my butt hurts"
by stangmike86gt January 04, 2012
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