A friend asked that I make their friend a beat to rap on.
When I asked my friend's friend what sort of beat they'd like, they responded in the Fortnite text chat, "skooby doo".
This is what I came up with.

I sampled the first episode of Scooby Doo, Slick Rick's "A Love That's True, Part 2", and GTA III's "Wash Him Off".