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1.
I don't give a fuck about you.
Bill: "hey baby, imy"
Jenna: "IDGAFAY ASSHOLE"
by IDGAFAY July 29, 2009
 
2.
I dont give a fuck about you
GF:I'm braking up with you
BF: good cuz idgafay
by BOBZILLA20 August 10, 2010
 
3.
Abbreviation of "I Don't Give A Fuck About Your Shit"
(G-rated version: "I Don't Give A Fudge About Your Stuff")
Used as a single response other than a word in a sentence.
Person 1: "I can't watch that show because it's bad."

Person 2: "idgafays"

Person 1: "I'm so telling on you!"

Person 2: "idgafays"
by BurconBager September 27, 2010