Top Definition
A sexual 'move' performed by S & M lovers everywhere. Is performed while a man and woman are having sex. Upon request the man cuts himself and bleeds all over the lady's muff so that she gets all his 'bloodborne pathogens' and receives literally everything the man has to offer the lady.
1) Damnit! I thought I had found a keeper until that bitch requested the Bloodborne Pathogen from me! No way I was doing that shit!

2) How'd you get it?! From my wild and crazy youth, I went crazy one night and requested the Bloodborne Pathogen.
by wordsRus February 24, 2009

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