old trout(redirected from an old trout)
rude slang A curmudgeonly old lady. Primarily heard in UK. Eh, the things she says don't really bother me—she's just a harmless old trout, so I just ignore her when I pass by her house.
old troutan unattractive or bad-tempered old woman. informal
1972 Victor Canning . The Rainbird Pattern She wasn't such a bad old trout. For all her money and position, life hadn't been all good to her.
old troutChiefly British Offensive Slang
An elderly woman.