let something slide

let (something or someone) slide

To choose not to take any action to correct or improve a particular situation or someone's actions or behavior. I find it so frustrating that my wife is always willing to let the kids slide when they misbehave, meaning I have to be the bad guy and enforce the rules. I've been meaning to paint the shed all summer, but I keep letting it slide.
See also: let, slide

let something slide

negligently allow something to deteriorate.
See also: let, slide, something
References in periodicals archive ?
She said, "If you're going to let something slide, let it be the homemade jam and yard work.
I would much rather make a big stink about nothing, then let something slide by and allow my child to be hurt or be made to feel inferior by anyone.
Mickey: Sometimes they make a threat, and sometimes they let something slide.
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