even a fish wouldn't get caught if he kept his mouth shut

even a fish wouldn't get caught if he kept his mouth shut

A warning that one can usually avoid trouble by not saying anything revealing or incriminating. I can't believe you told them about our plan! Geez, even a fish wouldn't get caught if he kept his mouth shut—come on, man! Even a fish wouldn't get caught if he kept his mouth shut. You need to keep that in mind if you're so determined to work with the mob. What is wrong with you, blabbermouth? Even a fish wouldn't get caught if he kept his mouth shut!

See also: caught, even, fish, get, he, if, kept, mouth, shut

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