Alternate meanings of STFU.
Fire away.
Samurai Training Finished Unsuccessfully
Shitty Teenagers Feel Urinated
Stupid tigers filched my underwear.
LMAO
Start the friking undercarrige
Stop Thinking From Uranus
Sink Tugboats From Uranus
Sample Tissue From Uranus
School: The Final Underworld
Springing Turnips Fight Uruguay
Shadow The Falsified Urchin
Still Trying Funky Unification
Suck the F***ing Urethra!
bee-atch!
my virgins ears! naughty neil!
can was do a new acronym now? like ROFLMAO? there’s so many options in ROFLMAO.
Run Over Fantastic Lesbian Men As Ordered
lol Neil, that’s the funniest yet XD
Slurp turds from uranus?
0_0
Stupid Topics Flummox Us.
Scott’s Tremendous Farting Utility
LOL! 
Sam Thinks Frodo’s Ugly
Stop Touching Far Under (you know what I mean >>)
australia?
Shut the fudgenut up =D
THis site has TONS of meanings for it STFU
It would if your URL worked, Kevin. ^_~