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]
(..) You're not going to see Bobby, are you? Maybe. My God, Laura. Well, why not? Because Bobby is a loser. You said so yourself. He's a goon. James is the one. He loves you with that everlasting love. (..)1992 Twin Peaks: Fire Walk with Me