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Acronym for 'totally just fucking with you,' used primarily in digital communication.
Flatmate 1: (texts Flatmate 2 at work) Hey, the cat's dead.
Flatmate 2: Oh my god, noooo!
Flatmate 1: TJFWU
Flatmate 2: I want you to move out.
by rufio212 November 03, 2011
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