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1.
the vulva of a black woman, more specifically the labia; black pussy.
She wasn't light-skinned either, man - this was grade A diggu.

or

Haven't gotten any brown sugar lately, and I'm in a diggu mood.

or

Nothing like the smell of diggu in the morning.
by James Thurber February 29, 2008

Words related to diggu

black female genitals pussy twat vagina vulva