n. a girl whose only usefulness is to get a guy off. The sex is for male relief and there is total lack of affection in the act.
When Brie Ann was cranky or otherwise wouldn't put out, there was always Sylvia, his bang piece.
Someone you have casual sex with, but have absolutely no respect for.
"What's up with you and Pamela?"
"That bitch? She's nothin' but a bang piece."
A sexual partner that the speaker uses strictly for sexual gratification. Several rungs below a fuckbuddy; emotional attachment and/or mutual respect are never afforded to a bangpiece.
Hell no I didn't spend the night... I fucked her and left. That's just my bangpiece, man.
A girl you keep around just for the sex.
Sally is such a bang piece! I swear she can suck the chrome off a bumper!
"ohh shit check out that bang piece there, I'm gonna have to get somma that!"
Someone that you'd like to have (relations) with.
Joe thought Sara was a real bang piece.
I girl that you only want for fucking. Related to piece of shit, ie. piece of bang.
Damn, that girl is such a bang piece.