Green’s Dictionary of Slang

(W.I.) general neg., used in phr., equiv. of what the hell...? phr. (1), where the hell...? phr. (1), etc.

1988

Buju Banton ‘Boom Bye Bye’ 🎵 Peter is not for Janet, Peter is for John / Suzette is not for Paul, Suzette is for Ann / Where the mumaclaat dem get dat from?