When several men gather in a combined attempt to group tea bag a gentleman's face. When it is done in a fashion as to humiliate said gentleman, this negates all homosexuality assosiated with mens balls touching.
"Hey guys, we've been camping for less than 4 hours and Adams already passed out. I say we garbagebag this bitch."
When a girl that has a flabby ass uses tight jeans to hold the ass in place. You can still tell as it is trashy. Like a garbage bag overflowing, if the jeans ever exploded, you would have a mess. Abbreviated as GBA
Matt: Jeff do you think my ex-girlfriend is hot?
Jeff: Not really.
Matt: Why the f**k not?
Jeff: She has a major case of garbage bag ass.
Like the Bag Job but in the case of the female being asthetically gifted neither above nor below the neck.
A garbage bag provides more coverage than a traditional paper bag, a hole in the side of the bag allows root to commence with out having to make visual contact with your chosen lady.