Originally Northern Irish, this expression shows confusion. As in:
(1) I'm so drunk I don't know if I need a shit or a haircut!
(2) What the fuck are you talking about?! You don't know if you need a shit or a haircut!
by Bobby8585 April 24, 2006
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shit haircut

the type of haircut that most asians have
me: hey look at that guy with a shit haircut!
by cocksucker3002 August 14, 2023
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