Top Definition
sdu
Sperm Deposit Unit. A woman's vagina.
She was very upset when he called her an sdu.
#vagina #pussy #cunt #vajayjay #sugarwalls
by JDahl February 14, 2008
SDU
Spunk Depository Unit. An easy lay, usually not clever enough to say no.
Lee, you've got no problem boning that, she a total SDU.
#spunk bucket #slut #cum dumpster #cockpit #shirley
by cardinalred October 12, 2010
Sperm Deposit Unit.
He hurt her feelings and called her an S.D.U. {sperm deposit unit]
#pussy #vagina #va jay jay #booty #poontang
by Janiceann January 15, 2008
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