"Asshole By Nature", Dub-G, Jay-Ton, employer and Others A.B.N means Assholes By Nature, produced by the rap singer Trae. A.B.N is showcased in lots of of his tracks. A.B.N isn't a negative thing to-be, whenever your bitch acts up only get abn on the ass. Asshole Naturally Abnormally Bulbous Nipples. An inherited problem that will usually influence people that are under a lot of anxiety aswell. One telltale indication of this obscure occurance occurs when nipple-lumps can certainly still be viewed, regardless of the wearing of a bra.