A process of deciding whether you care or have an opinion about any thing, policy, concept, idea, etc, by stripping it down to its most basic parts. If you are motivated enough to have a position/opinion on any of its parts, then it can be said you give a rat's ass about the topic.

Basically a way of determining whether you give a rat's ass about a specific issue, topic, etc.
Normally, I could give a rat's ass about the New York Yankees. However, since they drafted former Nebraska Cornhusker Joba Chamberlain; I have an interest in them; and how the Yankees are doing passes my rat's ass quotient.
by Deimreon February 24, 2010
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An ass that is particulary pointy, rather than rounded like a normal ass.
Hey ho, how 'bout you lose that rat-ass and get some real junk in the trunk!
by Aaron N.W. January 14, 2007
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A negro that snitches on people. A rat, a pussy, a fake.

also see 50 cent
P1: Yo my nigga Game just got busted.
P2: Man, dat nigga 50 is a rat ass nigga.
by OG VSG24 August 18, 2017
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A pronoun for a guy that is annoying
Tammy:"EW CONNOR YOUR A FURRY RAT ASS"
Connor:"thanks mom! I love being a furry rat ass"
by Haley🐀🐀🐀 November 9, 2020
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When referring to the tightness of a ladies vagina. A pussy that is very tight can be compared to the rats ass.
I've never fucked a girl with such a tight pussy. Her vagina was squeezing my dick; and when I slid my cock in there it was as tight as a rats ass.
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What you give when you don't care about something; see flying fuck, ask me if I care?
Howard Dean's in town! I don't give a wrinkled rat's ass!
by octopod November 22, 2003
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A vulgar and seriously demeaning phrase used when driving home an insult that intimates that you have so little respect for the person you are insulting that you are suggesting the person lick your rat’s ass instead of your own.
I have an idea for you: why don’t you lick my rat’s ass?
by Dr Bunnygirl June 5, 2021
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