She was a 'loser' in the first round of the tournament. [=she lost in the first round of the tournament]
Whoever benefits from the new government programs, the real 'loser' will be the American taxpayer.
He's a 'bad/poor loser'. = ('US') He's a 'sore loser'. [=he becomes upset or angry when he loses]
(..) I'll arrest you right now. ...then I see her dancing at the wedding with you-know-who. I say, "Why don't you go to Parents Without Partners?" He goes, "Ma, they're all losers at the Parents Without Partners," so... So I say to him, "Princess Carolina of Monaco..." Schuyler. Do you know who I am? (..)2006 The Departed