From Longman Dictionary of Contemporary Englishlet something slidelet something slideWORSE a) to let a situation get gradually worse Management has let safety standards slide at the factory. b) spoken to ignore a mistake, problem, remark etc, without becoming angry or trying to punish it Well, I guess we can let it slide this time. → slide
Examples from the Corpus
let it slide• On the other hand, what kind of feminist would I be if I let it slide?• You can now unscrew the nut and let it slide down the pipe as you don't need it now. 