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2 definitions by Fybae

 
1.
A layer of fat located under the chin of an overweight male or female. Typically, this layer of fat appears when moving one's head down, or wearing a very tight collared shirt, however, the "backup chin" phenomenon appears as a constant in overweight people.
"Damn dude, them burger's be givin' you a backup chin!"
by Fybae November 16, 2011
 
2.
A term that sceavy people use to describe a large quantity of Heroin.
-"You see dis watch right here? Sum'n light."
-"Yeah lanky bob, I had one like that a while back, pawned it in for a Heroin Bone, haha."
by Fybae August 02, 2011