Green’s Dictionary of Slang

(orig. US) angry.

1945		M. Berger ‘Army Lang.’ in AS XX:4 Dec. 262: P.O.’d, ‘angered or annoyed.’.
1949		J.H. Burns Lucifer with a Book 121: The Southern kids are plenty PO’d.
1953		S. Bellow Augie March (1996) 439: ‘And what if Arthur decides to bless my last years with another?’ He was p.o.
1958		(con. 1950) E. Frankel Band of Brothers 266: They think they’re as good as us footsloggers. Really got me p.o.’d.
1966		R.E. Alter Carny Kill (1993) 78: May won’t give you a second tumble and you’re POed.
1974		Eble Campus Sl. Apr. 1: p.o.’ed – angered or frustrated.
1978		A. Maupin Tales of the City (1984) 109: ‘What about the wife?’ ‘Extremely PO’d that hubby’s not getting off on the decadent ambience.’.
1987		‘Joe Bob Briggs’ Joe Bob Goes to the Drive-In 5: In fact the Big Guy was a little p.o.ed.
1989		H. Rawson Dict. of Invective (1991) 303: The reflexive pissed off, to be angry, once euphemized as peed off or P.O.’d.
1992		D. Burke Street Talk 2 53: Just make sure to come home before 12 am or asap, ok, or I’ll be po’d.
2015		S. King Finders Keepers (2016) 55: He was growing increasingly irritated with Andy - PO’d, as Jimmy Gold would have said.