fish or cut bait - to do something yourself or quit and let someone else do it, to stop trying to do something We told the men to fish or cut bait. If they did not want to buy the car then they should stop asking questions about it a fish out of water - someone who does not fit in The man was like a fish out of water at the expensive restaurant. fishy - to be strange and suspicious Something is fishy with the man's excuse for being late for work. fit Idioms fit and trim - to be slim and in good physical shape My.