«خَد مِتْعَوِّدْ عَ اللَّطْمْ»

The picture is of a cheek that has been struck so often that being hit has become routine for it. Applied to a person, it points to someone who has met insult and injury so many times that putting up with mistreatment has turned into a settled habit.

The saying also passes judgment. It treats this habit of enduring harm as the mark of a lowly, contemptible character rather than as patience or resilience, and the speaker uses it to voice scorn toward the person described.

Said to criticize someone who repeatedly swallows humiliation and harm without objecting, usually with open contempt. It insults its target, treating tolerance of mistreatment as low character rather than patience, so applied to someone suffering genuine abuse it effectively blames the victim.