drip down baby

A human baby conceived as a result of the semen ejaculated onto a woman's body after hand job, most often used in the context of a shower handy where gravity causes the sperm to "drip down" into the woman's nether regions.

Swole Bro 1: Did you hear Mandy got pregnant?
Swole Bro 2: Yeah bro, Brock told me it was a drip down baby.
Swole Bro 1: No way brah! He's got some strong swimmers