Green’s Dictionary of Slang

(US) of people or things, second-rate, useless.

1970		T. Southern Blue Movie (1974) 47: Juggling production costs and profits between winner flicks and loser flicks.
1989		P. Munro Sl. U. 124: I can’t believe you get all these loser classes.
1990		S. Morgan Homeboy 302: Riotous cheering [...] for kindred loser spirits immortalized on celluloid.
2004		J. Ellroy ‘Hot-Prowl Rape-O’ in Destination: Morgue! (2004) 260: Donna does doofus TV. She’s an on-call oncologist with a loser love life.
2007		D.S. Mitchell Killer Tune (2008) 17: All you ever did was make a few loser records for your friends and family.
2018		G. Disher Kill Shot [ebook] The loser son, the crippled wife, the carer daughter.
2020		(con. 1991-94) W. Boyle City of Margins 71: Not that she wouldn’t date an older guy, but it’s sure as shit not going to be a loser teacher.