The result of ejaculating on a sexual partner with dark
skin. Named for the likeness of a clear
night sky (or planetarium) with the contrast of droplets of ejaculate on dark
skin.
Craig: Hey, African American girlfriend. Remember that time I popped one out on your belly.
Tracy:
Yes,
Craig. The contrast of your ejaculate on my
awesome dark skin reminded me of a planetarium.
Craig: You might say that I gave you a Planetarium.
Tracy: Sure ... I guess you could.
Reginald: Yo, Franz, I heard dat Victoria got a photo of her planetarium up on da Facebook?
Franz: Shhhhiiittt. You mean a photo of dat booty with a bunch of cum all up on da surface of it?
Reginald:
Yes.
Omar: Hey, Becky, did you hear that the superhero Captain Planitarium saved an entire city this morning?
Becky: Oh, really? How did he do that?
Omar: He ejaculated on everyone!