guy 1: jacks gotten awful fat lately huh? guy 2: yeah i think he's storing a burger in that cavernous double chin
noun: the large sack of fat located under the chin of fat or obese people primarily used for food storage
"guy 1: jacks gotten awful fat lately huh? guy 2: yeah i think he's storing a burger in that cavernous double chin" What is the definition of "double chin"?