a giant piece of shit that has a tail, resembling a rat
guy 1: so i was taking this giant shit at mcdonald's last night and it turned out to be an ass rat.
guy 2: god damn
by chicken fried negro sammich October 22, 2008
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1. Eww! I found an ass rat up my butt.
2. OMG, she is being an ass rat.

by :P :P :P :P June 11, 2008
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An asshole who likes to fuck unassuming people over from behind.
You are such an ass-rat for tattletaling on your colleagues. Is that how you got promoted?
by Cont78 December 18, 2010
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A russian mail order husband who uses a screen name holy gerbil who exchanges his aim programing skills for a green card and escape from an Israeli relocation camp.
Arkansas woman: Ooooo weeee I'd sho like to get me one of them ass rats since they is so grateful for saving them they give you sex and everything right up the ass.
by BigBrotherMick426 September 23, 2009
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A girl who sleeps with an excessive amount of men. When you see her, you can automatically tell she sleeps with ALOT of men.
dude #1: "Dayum! Look at that chick, she looks like she slept with a whole shit load of guys."
dude #2: "Helly yeah! That's a hood ass rat right there."
by Latin Snake September 10, 2010
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