Top definition
Visable collection of navel (belly button) fluff. Usually created by the coming together of a natural fibres (such as wool) and a large sweaty belly.
My, you've got a lot of bulff in there, that's disgusting.

by David Bower April 14, 2008
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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