If the cap fits, wear it.
If the cap fits, wear it.
'If the cap fits, wear it' is a folksy way of suggesting that if a particular remark or criticism applies to someone, they should accept it rather than reject it. This idiom encourages individuals to acknowledge truths about themselves, especially if they are being criticized or described accurately.
If the cap fits, wear it, Bill. You know you caused the problem.
Bill is being told to accept responsibility for causing the problem, as it suits him.
She looked guilty; I told her if the cap fits, wear it.
She looked like she felt guilty, and she was advised to accept that if it was true.
He’s always complaining about the team’s flaws; I told him, if the cap fits, wear it.
He constantly points out mistakes, so he was told to acknowledge his own flaws if they applied.