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
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.Buy the mug
Can you define these popular missing words?