The Vietnamese word "mom" has a couple of meanings and uses, which can be quite interesting for learners.
River Bank (Đi men mom sông): In this context, "mom" refers to the edge or bank of a river. When you say “đi men mom sông,” it means “to come home by skirting the river bank.” This usage is more poetic and not commonly used in everyday conversation.
Ulterior Motive (Đoán trúng mom): Here, "mom" is used to describe the underlying intention behind someone's actions. When you say “đoán trúng mom,” it means “to make a right guess at someone's ulterior motive.” This usage is more abstract and is often used in discussions about people's intentions or behaviors.