there's a grain of truth in every joke

there's a grain of truth in every joke

Something that one jokes about may come from something that they truly believe. I know she said she was joking about being depressed, but I'm concerned—there's a grain of truth in every joke. A: "Oh come on, I was only joking! I would never do something like that!" B: "So you say, but there is a grain of truth in every joke."
See also: every, grain, joke, of, truth
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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