stfu

from The Free On-line Dictionary of Computing (8 July 2008)
STFU

   <chat> Shut the fuck up.

   (2008-03-04)
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
STFU
       Shut The Fuck Up (slang, Usenet, IRC)
       
    

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