a term used when someone or something is only average, but still gets the job done. if you're sub-par, you definitely don't get the job done.
Man, this paper plate is ghetto fab. Can you see? Look at these holes.
Eh, gets the job done.
Mos def, it still gets the job done, I'm just saying though. I mean, I'm no doctor or anything, but I think paper plates shouldn't come with holes in them. But it still gets the job done, so I ain't saying nothin.