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1.
a female hoe: one who has sex with too many people
man that gilr is a straight dulo
by sunshine November 10, 2004
 
2.
An urban Southern term for a sexual escapade involving more than two partners. See also: gangbang.

Pronounced: dew-low
"Britney is a ho fo sho, let's run a dulo on her."

"Paris Hilton is always down for the dulo."
by Bryan Hardman September 12, 2006