Buffer Person 

That one guy or girl that keeps you from being either heterosexual or homosexual.

Josh: Hey, do you want to go the strip club tonight
Patrick: Nah, I'll just sit here and watch gay porn.
Josh: Well, Danielle is going to meet us for dinner afterwards.
Patrick: If Danielle's going to be there then I'm going for sure.
Josh: She sounds like your Buffer Person.

Buffer Person by TheMinecraftPlaya June 12, 2013