Something that sits between two men at a restaurant, movie, or in a car. Can be a female or a tub of popcorn. The buffer prevents anyone from thinking the two males are "homos" and might be dating. Sometimes the fag buffer is actually a front so that two fags can go out and still be perceived as straight. The fag buffer usually gets a good meal, a movie and collects a lot of material for later extortion.
I went out with Bob and Gene last night and had to play fag buffer all evening. Straight men are so childish!
A person (friend or stranger) you elect to walk in front of you in a crowded area, acting as a shield from the surrounding masses and allowing safe passage by following closely in their wake.
The hallway was very crowded so i found a crowd buffer so I wouldn't have to wade through them
The area of ghetto and bad neighborhoods that separates a major city from the surrounding suburbs. To get to downtown, one must either go through, or around the Ghetto Buffer.
Wife: Honey, why are you getting on the freeway? It's a shorter trip on the smaller roads because of all the traffic on the interstate.
Husband: I'm not driving this car through those shitty neighborhoods. We have to avoid the Ghetto Buffer.