Green’s Dictionary of Slang

wagga-wagga adj.

[Yoruba waga-waga, bundled together]

(W.I.) plentiful, abundant.

[WI]L. Bennett Auntie Roachy Sey (2003) 22: Is which part poor Jamaica gwine get de money from fi do all dem wagga-wagga sinting?
[WI]Francis-Jackson Official Dancehall Dict. 54: Wagga-wagga 1. over abundance 2. flabby.