Semi-nice way of telling someone you're never going to pay the back... Ever.
Saul: Yo U want some chips?
Brad: Yea, how much?
Saul: $2
Brad: Shittt... gimme it and I'll pay you back tomorrow.
*Never sees Brad again*
Shitty ass drink kids overprice and sell at school to make a profit but get it stolen every other day.
Tommy: Yo u want some Prime Hydration?
Kid: Yeah, how much
Tommy: $5
Kid: Suck my balls for $5