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"I caught my mom and dad in bed"
"tfs, moron!"
tfs by stian p April 17, 2006
Related Words
TFS bombed up my wall again last night.
TFS by TFS July 10, 2005
Usually used when you have diarrhoea. Stands for Terrible Fucking Shit.
Chamir : Dude I just hit a TFS.

Theveshan: Holy crap man, your ass must have poop stains.
TFS by Mr_Gargoyle November 6, 2015
TFS by JoshV2006 September 29, 2006
Didn't mean to push you that hard, man... I'm TFS for my own good.
TFS by melvadere June 8, 2010
'Testosterone Fluctuation Syndrome', meaning the male version of PMS.
Lucie: Dude, don't go near Tim, he's got a bad case of TFS.
TFS by Cupid's Jinx September 22, 2009