man 1: oh man that chick was so hot, but our balls totally touched brah  man 2: yea brah you totally doppelganged me  doppelganger
while having a threesome that includes two men, and your balls touch - doppelganger!
"man 1: oh man that chick was so hot, but our balls totally touched brah  man 2: yea brah you totally doppelganged me  doppelganger" What is the definition of "doppelganger"?