practice a form of rapping or calling marked by rapid alternation between the normal voice and falsetto but in a gangsta sort of way...not to be confused with regular yodeling which is less entertaining.
When a singer draws out or oscillates notes excessively (seems to have been started by the ilks of Mariah Carey, Whitney Houston and Christina Aguilera) Especially when covering music written by others. And can be heard in karaoke bars.