1 definition by joshlong

Top Definition
Rolls of fat that are exposed when a fat girl wears a belly shirt and it is mashed up to look like cleavage, much like a fuva
Tim: Aw man look at that girl with the muffin top.
Jeff: Damn that is some naval cleavage!
by joshlong June 24, 2009
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Buy a naval cleavage mug!