Green’s Dictionary of Slang

aachibombo n.

also aachi, achibong, achibung
[W.I. aachi, codfish + bumbo n.2 (2), lit. ‘codfish-arse’]

(W.I.) a codfish fritter.

[WI]Daily Gleaner n.p.: dialect list [...] Achibong, achibung, saltfish fritters [DJE].
[WI] in Cassidy & LePage Dict. Jam. Eng. (1980) 1: Tre /aachi-bong/ saltfish fritters dropped from a spoon; West /aachi-bombo/ an obscene name for saltfish fritters, more politely called just /aachi/ .
[WI]Cassidy Jamaica Talk 195: Saltfish fried in flour paste is said to be called /àchibóng/ or /àchibómbo/, but no clear source for it has been found.