Posted by R. Berg on January 21, 2003
In Reply to: "Pisses me off"! posted by Bill Dunn on January 21, 2003
: Anyone have any idea how this very common expression originated?
I don't, but it seems to be a British export. Eric Partridge, "A Dictionary of Catch Phrases," explains "pissed off" as "angry, disgusted, etc., borrowed during WW2 from British troops by American" (part of Partridge's entry for "enough to piss off the Pope").