An involutary reflex during breast feeding which causes the milk to flow freely at any given time. Can be triggered by any number of situations, two examples are, thoughts about a child or hearing a child cry.
After birth, while pouding a Big-Mac and fry, Gina experienced let down (this woman eats copious amounts of fast-food). she then proceeded to tell all of Utah about the experienced let-down.
when a woman performs oral sex on a man from behind.
The female version of salad tossing which includes the female massaging the males scrotum.
Sherry gave Frank a let-down last night and he loved it.