rat's arse

A rat's arse is usually something you don't give. So, if someone says "I don't give a rat's arse!" it's just another way of saying "I couldn't care less!" or "I don't give a fuck!"

However, it is possible to give a rat's arse, too. Many years ago a meteorological (Met) colleague working at an Antarctic base opened a crate of equipment that had been shipped to the base many months previous. Inside was the severed body of a dead rat. The rear end was put on display somewhere together with the sign: "Who gives a rat's arse? Met do!"
"I think I've left my homework on the train. Oh well, I couldn't give a rat's arse. It was bullshit anyway."
by derw00d February 10, 2022
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rat-arsed

English slang-term meaning drunk. Nothing to do with rats or their arses.
Paula Abdul is always rat-arsed
by Jack Hackett August 24, 2007
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rat arsed

To be ridiculously drunk
I wana get rat arsed!
I was fuckin' rat arsed last night
by AO'CB May 14, 2008
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rat arsed

I got absolutely rat arsed last night and tried to shag my neighbours cat...
by Arse Rat February 22, 2003
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Rats Arse

A word used to be spiteful and suggests not caring.
'I don't give a Rats Arse about you'
by sugarplum21 April 05, 2009
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rat arsed

to be rat arsed means to be under the influence of a large amount of alcohol; to be pissed to fuck
"oh mate i got fuckin rat arsed night?"
"for real?"
"yeah dog"
by tommad86 September 27, 2007
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rat arse

by Hayz September 27, 2003
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