an acronym for "stressed the fuck out"
STFU, my finals are next week i'm so STFO.
Tommy: Chipotle didn't give me any veggies when I explicitly asked for them. You should stfo!
Sign the fuck off
Used when you need to log off
person 1: blah blah blah blah blah blah
Person 2: alight i gotta STFO, laters
Used when something agreeable or relatable is said.
For example: Sally: “What is the point of algebra, we aren’t gonna need it in our everyday lives” Jack: “stfo”