Half Nut

Alright listen up buttercup. So basically, a "midget" is a small person. And "precum" is the pre-ejaculate a man leaks before he nuts. So if you combine the ideas, you get "half nut" which is funny because it sounds like half a person, and also references the precum. And you thought you were dumb? Well, I've met rocks smarter than you, pal.