Trivial; insignificant: Tennis was a diddly sport back then/ If you had a choice between IBM or a diddly-squirt upstart
nounNothing at all; very little; zilch: Rock critics don't mean diddley/ I don't know a diddly damn about theater/ And Hannibal, he didn't do diddly-squat/ They take this very seriously. It isn't just ''diddley-eye'' to them (1960s+)
Related Termsnot give a damn, not know beans