2
To ejaculate onto a woman's back after fucking her doggy style, such that the semen forms perfectly aligned rows.
Girl 1: Have you noticed that there are 3 perfectly aligned stains on the back of your shirt?

Girl 2: Yeah, my boyfriend hydroseeded me.

Girl 1: Ah, hydroseeding, that explains it.
by dd_slayer June 13, 2013
Get the mug
Get a Hydroseeding mug for your Facebook friend Nathalie.