"I don't understan it." Can you say how to improve my poor sentence?
Ah I see, the "whatever" put me off. Just change it into a "however."

Anyway the term just means to feed someone sperm by kissing them. This kind of sexual vocabulary however is pretty random and can mean anything. You can turn pretty much anything into something sexual... The other day I heard heard someone talking about "brushing their teeth with a natural toothbrush - toothpaste included" or something like that LOL