Top Definition
When you get a hot girl to have sex with you only to find a Mountain Man Suprise also known as having a massive amount of pubic hair similar to a beard, and she has a small penis hidden within the hair.
Guy 1: Dude, I took this chick home from the bar last night and guess what, fucking Asian Mountain Man Surprise!

Guy 2: Fucking gross what did you do?

Guy 1: What do you mean?

Guy 2: Uhh....?
by Perplexing Enigma March 24, 2011

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