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1.
term used for a hermaphordite's genetalia
Person A: Hey look at that thing with a dick and a vagina
Person B: Thats what i call a tangwang
by Suckmydick Balls October 31, 2009
 
2.
The smell emanating from your crotch after not washing your penis for a week after having sex.
I went to take a piss and realized, holy shit, I have tangwang, I better take a shower.
by Schwocky December 06, 2011