when a woman cant breast feed because her breasts don't produce milk
woman crying "nothings coming out", exhausted boyfriend "yup you gt milk duds"
by horsehung49 August 4, 2009
A nickname for a mentally-ill mexican, usually yelled in it's general direction
Mentally-ill Mexican: "MIILK DUUUD?"
Mentally-ill Mexican: MIIIILK DUUUUUUD!!!"
Person: "Milk Dud..."
Mentally-ill Mexican: MIIIILK DUUUUUUD!!!"
(The mentally-ill mexican now knows "Persons" face, and calls him "Milk Dud")
by uf4gt September 19, 2013
Breast that are too old to give any more milk
Nobody wants to go party with a bunch of old Milk Duds
by Slappy Ray February 25, 2016
Half circle pencil markings in the writing utensil slot on a desk. Students fill in the sides of utensil slots on desks throughout schools with their pencil, creating what is known as a milk dud. After finishing a milk dud, students will typically erase them, but in many cases they're left behind for other students to continue the milk duds, shading in the entire pencil slot.
Ayo teach check these milk duds out, madem myself.
by lucasman1111 February 10, 2011
after having sex
twisting the womens nipples
i gave her the hardest Milk dud last night
by ryan perry October 4, 2007
The phrase "milk DUD" is a lesser known term for bro, because of bros pronunciation of the word "Dude". The bros are so over-whelmed with their broness, they feel the need to pronounce the word "Dude" like the word "Dud", we get "milk DUD" because it just sounds like it makes sense.

you: that guy is a milk dud.
by hayoitskayyo April 4, 2010
A person with a cock under 3 inch usually dark colored
My ex had a total milk dud cock
by Lil stoner July 2, 2015