An acronym for Fuck This Shit 101.
Guy 1: Wow, dude you're butthurt.
Guy 2: Fuck this shit, and fuck you! *Flips Desk*
Guy 1: Wow, someone knows how to look strong. (Sarcasm)
Guy 2: Fuck yes, from the prof/teacher himself, I learned FTS 101.
Guy 1: What the fuck is that?
Guy 2: Figure it out your own damn self. (-_J-)