The action of licking the crumbs off your fingers after you eat a bag of chips.
Jack: "What are you doing?"

Jerry: "Licking the crumbs off my fingers. It's all over them because I just ate a bag of chips."

Jack: "Gross."

Jerry: "It's not gross, it's just crumbletion."
by RadioactiveFlamez June 23, 2013
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One who is disgustingly persistent.One who has horrible manners and cannot contain themselves.Crumblets always want and never give, they act selfishly in almost all situations. Its is of great insult to be called this.
Nick: yo son you got a cigarette?
Ryan: Yea sure man
Nick: You got a light?
Ryan: Yea man
Nick: You got any gum?
Ryan: Calm down you CRUMBLET!

by **RPM** December 8, 2006
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