When you have drugs and you need a good place to hide them quickly so you put the baggie in the space between your balls and your penis.
Person 1 : Yo Shit it’s the feds bruv hide the coke!
Person 2 : nah worries man I’ll start sacking ‘em.
When you need to poo but cannot find a toilet, so you ask a close friend if you can poo on their head
Person 1: dude! I really need a brown skull
Person 2: hold on. I'll get on my knees
I heard that Jordan revived a brown skull for Dave at a party