An accretion of miscellaneous fabric that gathers in the recess of a navel. Can be speroidal in shape cemented by sweat and other bodily secretions making retreival only possible with a long fingernail or tweezers.
Oooh yuk! He has enough belly button lint in that freakin' navel of his to knit a sweater.
by Icubeprime March 17, 2006

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