an odd/a queer fish
Someone deemed strange by others. No, I didn't invite Joey—he's an odd fish, if you ask me. You can't say weird stuff like that, unless you want everyone else to think you're an odd fish.
Someone who is very strange. Primarily heard in UK. Everyone could tell he was a queer fish as soon as he walked into the party with his mismatched clothing.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
an ˌodd/a ˌqueer ˈfish(old-fashioned, British English) a strange person: He’s an odd fish. He’s got a lot of very strange ideas.
Farlex Partner Idioms Dictionary © Farlex 2017
n. a strange person; an aloof person. She’s a bit odd. Sort of a queer fish.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.