A man that is destined to be punked because they do not possess the strength of character to be hard. A bitch nigga will always crumble when confronted by a real nigga.
A man who, instead of behaving in a manly way, such as standing up for his actions or staying out of other people's buisness, behaves the way a woman, or bitch would, participating in gossip and talking behind other people's backs, with the ultimate goal of causing drama, like a woman (bitch) would.
Because Mr. Jones focused on the most petty things about Mike to make an issue out of towards his superiors so he could exercise control over him, that made him a bitch ass nigga.
Real nigga: "That boy was talkin shit bout bussin down bricks so i gave him one and i found him in da trap itchin... Dat bitch nigga owes me money and it's comin out some way!"