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2.
"wtsf" is an internet acronym for "What the shit fuck?" a variation of "wtf"
"WTSF?? I shot him 12 times!"
by Tnarg March 20, 2005
 
1.
Acronym - "What the serious fuck?"
Guy 1: So did you hear? One Direction are now bigger than The Beatles!

Me: WTSF? BRB an hero.
by Rank 47 August 05, 2012