idaf is an acronym. It stands for 'I don't give a fuck' it's just something to use when u don't care about the other person or what he/she did.
by FlameDrop January 25, 2013
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Male Teacher: Rose you're disturbing my lesson.
Rose: Sir, IDAFYO.
The weird person in school: Ellie you're a bad influence on the younger students in school
Ellie: IDAFYO.
Mother: Mia you're such a smart person in school, but why are you dumb at home?
Mia: Mother IDAFYO
Rose: Sir, IDAFYO.
The weird person in school: Ellie you're a bad influence on the younger students in school
Ellie: IDAFYO.
Mother: Mia you're such a smart person in school, but why are you dumb at home?
Mia: Mother IDAFYO
by Rosegal x May 12, 2020
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