What is Stfd And Stfu?
Conjoins the two following acronyms 'stfd' and 'stfu'
"Sit the fuck down, and shut the FUCK UP!"
Used when 'stfd' or 'stfu' doesn't achieve a satisfactory effect.
Often used to establish superiority and 1337ness.
"stfd and stfu bitch and gtfo you n00b"
Mr. Pub-Star 1337