Green’s Dictionary of Slang

moax n.

[from 1940s and popularized in 1950s TV show The Honeymooners by star Jackie Gleason as ‘Ralph Kramden’; ? mooch n.1 (5)]

(US) a chronic failure, a bungler.

[US]M. Ribowsky Don’t Look Back 117: That he could cut himself in merely by calling a bunch of moaxes the ‘Dizzy Dean All-Stars’ did not ameliorate bigotry.