A phrase used to refer to the end of the week when you just need to get really drunk.

Frequently happens after Fuck This Shit O'Clock
Victoria: Ugh my boss was a huge prick today, Fuck this shit Friday.

Justin: 3 exams down, 5 to go! :(
Martina: Fuck this shit Friday?
Justin: You know it!
by Flubber92 January 11, 2014
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