Where does “đụ mẹ” come from?

đụ mẹ (Vietnamese) comes from Vietnamese mẹ, from Chinese 迷.

Ancestry of “đụ mẹ”, step by step

đụ mẹ traces back through two separate lines of ancestry.

via Vietnamese mẹ

StepLanguageWordMeaning
1Vietnamesemẹa mother; I/me, your mother; you, my mother
2Chinese迷—

via Vietnamese dù

StepLanguageWordMeaning
1Vietnamesedùumbrella; parachute; even if
2Proto-Vieticjɨh—
Every word from Chinese 迷 →Every word from Vietnamese mẹ →