What Does It Mean to Bust a Mission

To have an orgasm. bust (one’s) ass/balls/butt Vulgar Slang.

What does it mean to bust in slang?

To have an orgasm. bust (one’s) ass/balls/butt Vulgar Slang.

Why is it called bust?

1690s, “sculpture of upper torso and head,” from French buste (16c.), from Italian busto “upper body,” from Latin bustum “funeral monument, tomb,” originally “funeral pyre, place where corpses are burned,” perhaps shortened from ambustum, neuter of ambustus “burned around,” past participle of amburere “burn around, …