The pronunciation of the acronym s.t.f.u. (shut the fuck up). It's faster than sayign the letters of the acronym, and much faster than saying "Shut the fuck up."
jxni: those are nice boots marl0n: thanks jxni: give them to me
marl0n: shtufah
a contraction of the words shtupid (see the definition for the word “shtupid”) and head referring to a person who is, will, or has made a completely spectacular stupid, idiotic, unfortunate or undesirable decision or choice