When you want someone to keep quiet but can't say it aloud because you are out in public or your parents or your boss is there.
I was walking down the street when the dogs behind the fence started to bark. I yelled, "STFU, STFU."
SAVING TURKEYS FROM UNICORNS - D-CHIP! ^ ___ ^
Seven Thursdays From sUnday
Mudkip: Kicking Wood w/ Not Politically Correct Folk Singers.
Anon: OH Lol'd. No we gotta make it epic!
Anon: lol wut?
Mudkip: Saving Turkeys From Unicorns.
Seaking: FUCK YEAH!!
You: no, mom
Your mom: yes!
You: STFU mom I'll rape you