It is a Nigerian slang pronounced (Bans) which is an acronym for the famous Nigerian Saying, Boys are not smiling. This slang is used when you are being serious about something, and could also be used for humor.
For Example: "how were your results?" "Ahh BANS" ... For Example: "How did you react to the football score?" "I was BANSING"
by Big man K August 03, 2011
A "Bitch-ass-nigga," also known as a busta, a someone who you can't trust, a fool, not a hustla, he ain't never thrust a single useful gestcha (gesture).
Deep falcon rarely speaks, but when he does, its guaranteed he'll say, "Lil' B.A.N.," since he tends to think most people other than himself are bustas, and he just might be right.
by nesia November 28, 2005