Someone that is wearing all gray clothing (usually a sweatsuit) and resembles a raincloud.
Look at that gigantic raincloud over there wearing his basketball sweatsuit!
A way the white man can refer to a mass of blacks without them knowing they're being refered to
"Hey, it's gettin kinda dark, looks like its gonna rain"
"Hey, there's a lotta rainclouds out today. Hope it dont rain"