A cow that no longer gives milk.
Previously a top producer on the ranch, that Geraldine is now a certified milk dud.
A synonym to Shooting Blanks used to explain when the male ejaculates without any sperm being present.
"I shot a Milk dud" "He shot a Milk Dud"
When a guy sucks the milk out of a pregnant womans tits.
That dirty bastard went home and sucked on his old lady's milk duds
Those small pebble like turd droppings that float around in the toilet water or possibly in your pants. Similar to dingle balls
Oh man, I tried to fart and blew out a couple a milk duds instead.
When a pregnant woman's breasts are so engorged that no milk will come out.
After my son was born I had 2 milk duds.
when a guy gets milk all over his balls due to a spill or dipping.
Guy: Awww, you spilled milk all down my balls.
Girl: Haha, milk duds.