Jon Liu; one who thinks is a stud, but in reality is a dud.
"I am a stud."
"No, you're a dud."
by PL October 30, 2003
north east term for undercrackers.
ah no, me duds are covered in skiddies.
by ipw June 09, 2004
A term used to describe outrageously ugly girls.
'Yeah I went out with those girls last night'
--Did you do em?
'No, they were duds.'
by Jake February 27, 2005

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