grain of truth(redirected from grains of truth)
grain of truth
A little bit of truth. Often used to refer to a small amount of insight or truth in something otherwise false or nonsensical. The only reason why Dave's joke about my love life bothered me so much is because there was a grain of truth to it.
(a) grain of truth
even the smallest amount of truth. The attorney was unable to find a grain of truth in the defendant's testimony. If there were a grain of truth to your statement, I would trust you.