Top definition
A piece of shit. Usually dropped on one's head, near or around the facial area.
Dude I totally dropped a Rusty Grenade on this chick last night!
by Jabraham March 13, 2010
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2
The act of defecating and ejaculating into the the palm of ones hand and tossing it over an object (e.g. a book) into the unsuspecting mouth of the target.
I gave Daniel a rusty grenade today while we were playing magic cards. I won the game.
by Daniel07 October 28, 2011
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3
The act of jizzing in ones hand, and then forcibly fisting it into an unsuspecting asshole.
I gave her the rusty grenade last night.. she never saw it coming..
by LoadedBandolier April 26, 2010
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