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1.
the act of having sex upside down, no condoms required..
I've got a migraine from that hangbang last night
by Soiled Undergarment July 12, 2003
 
2.
Hang-bang refers to when a person says they're going to hang out with another person but is really going to bang them.
Jim- "hey, are you going to hang-bang that girl you met at that sketchy club last night?"
Phillip- "sure am! We're going to her grandparents house..kinky." (;
Jim-"I see..."
by s.rae September 20, 2013
 
3.
to have sex upside down;
damn, i was hangbanging last nite, it was all good.
by GuNZO January 03, 2003