Bac Lieu is a name of a town and province in Vietnam in which it also resides within
The slang meaning of Bac Lieu is that it was meanings as it can be used as an adjective in a sentence but mostly used in a sexual context
To tell someone to go Fuck off or to Fuck themselves you would say; go bac lieu yourself.
Getting ripped off or sabotage; this person bac lieu'd me over
To have sex or to ejaculate; I want to bac lieu this chick, or this girl is so hot I bac lieu'd myself