When the male sexual partner pulls out just before ejaculation,in the old english school boy style, and proceeds to release his ejaculate wildly onto his female partners facial region. A sample of his load then seeps into her auditory member,left or right, and causing symptoms that would be diagnosed as swimmers ear.

When you eat dirt for the first time and leave your family to build a shack in the woods

You stick your penis into a womens ear and get ear wax on penis. Then you insert your waxy cock into her pussy using the ear wax as lube.

when you cum in a girls EAR

When you're fingering a girl and give her a wet willy with said finger(s)

The act of a man blowing a load into the face of an unexpecting victim.

When a guy pulls out and nuts in the girl's ear. He then proceeds to kick her in the shin.