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2 definitions by DarkSovereign

 
1.
TSF
Talking Shit Frequently - One who talks a lot of shit.
Man these fools are tsf'ing again.
by DarkSovereign September 27, 2005
 
2.
TSF
Tactical Strike Force - An elite clan in Wolfenstein: Enemy Territory version 2.55.
TSF pwns n00bish clans.
by DarkSovereign September 24, 2005