The ugly chick you fuck on a regular basis when all other chicks have hated on you. In other words, she is the plan C of your night at the bar. She is preferably fat and/or STD infected. The banghorse always swallows. Keep in mind: She is not a friend with benefits because she is not your friend; she's just the ugly chick that you met at the deli and now you fuck.
"SHit, man. I'm so drunk. I'm gonna call my banghorse.........so I can get a blowjob."