- adjective inferior, worthless, unpleasant. A vogue term in use in the black hip hop and rap subcultures in the early 1980s. The term is probably derived from whacky. By the 1990s it was employed as an all-purpose pejorative, also in use among British and Australian adolescents.
- noun a term of address between males in the working-class speech of the Liverpool area. The word may be connected with whack, meaning a share or portion (as in ‘pay one’s whack’).