(slang) (internet slang) shut the fuck up
Example Sentences:
A: Man, your sister is beautiful. Can I go on a date with her?
B: STFU! You can’t date my sister!
When my brother told me to go to hell, I told him to STFU!
From the Blogs:
It’s time for Perez Hilton to STFU
Media:
Similar idioms: