«عِرْقْ جَنْبْ وِدْنُهُمْ مَا يْحِبِّشِ امْرَاةِ ابْنُهُمْ»

The saying treats a mother-in-law's coolness toward her son's wife as almost built in, as if a little vein beside her ear kept whispering against the bride. The vein is figurative, an inner voice murmuring into the ear, not an anatomical claim.

Speaking of mothers-in-law as a group, it casts this rivalry as habitual and hard to argue away, reflecting a traditional stereotype rather than a fair truth. The older woman is pictured as inclined to find fault, prompted by that murmur rather than anything the wife has done.

Fits a wry remark about friction between a husband's mother and his wife, especially when the dislike seems causeless. Because it rests on a stereotype, aiming it at a specific woman can sound like an accusation; it works best as a light general comment.