What is "one-hit wonder"

n. 1 (context idiomatic English) A musical performer or musical group known for a single hit song, especially after failing at later attempts at success. 2 (context idiomatic by extension English) A person or group known for achieve only a single major accomplishment. 3 (context marijuana subculture English) An instance of getting high off the first hit.

A one-hit wonder is any entity that achieves mainstream popularity and success exactly once in its lifetime, and becomes known among the general public solely for that momentary success. The term is most commonly used in regard to music performers with only one top-40 hit single that overshadows their other work but is not limited to that field.