Recently emerged due to all the YOLO derivatives, ftst is a simple acronym. It just means "Fuck that Shit Then", used generally when something is rejected or denied.
-"Hey, wanna chill?"
-"No thanks, I've got a BF"
-"FTST"
The Fistgate Scandal happened in Massachusetts where a bunch of students received graphic instructions on having various forms of gay sex. Students were taught how to fist each other the "correct" way, how to practice tribadism, etc. Rather than prevent such happenings in the future, the schools involved simply banned taping the events to prevent oversight and accountability.
Friend 1: "Did you hear about the Fistgate Scandal?"
Friend 2: "I think. Wasn't Fistgate when all those students got taught how to fist fuck each other by some gay group which took over a school?"
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failureshower.