a cheap shot

US /ə tʃiːp ʃɑt/
UK /ə tʃiːp ʃɑt/
"a cheap shot" picture
1.

ضربة رخيصة, تعليق غير عادل, هجوم غير نزيه

an unfair or unsporting remark or action, especially one made against a vulnerable person or at an opportune moment

:
His comment about her past mistakes was a cheap shot.
تعليقه حول أخطائها الماضية كان ضربة رخيصة.
The politician took a cheap shot at his opponent's family.
وجه السياسي ضربة رخيصة لعائلة خصمه.