The compressed chunks of oil, dirt, debris and dead skin that form deep in the hidden folds of your naval.

Not to be confused with common daily belly button lint, they usually apply only to individuals with "innie" belly buttons. Dirt pearls can not simply be washed away but instead must be methodically removed, usually with the use of a narrow tool such as a pair of tweezers.
When cleaning your belly button, make sure you clean deeply and thoroughly to remove the dirt pearls. This is important to personal hygiene much in the same way as cleaning under your finger nails.
by Drlydprtddirtsquirrel March 5, 2016
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