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1.
Adj: Something that will piss you off
your gay friend advances on you and you hate it
you: Gos, you're being really pissoffish!
by Tag the Thief May 24, 2008
 
2.
annoying or bothersome; something that gets in one's way.
"Looks like we won't be able to DSL where we live. That's so pissoffish."
by shrawder August 27, 2008