When you take a dump and then you beat one off onto your own shit. Thus leaving a nice coating of frosting on your wet fudgecicle.
Billy had blue balls and was prairie dogging, he then knew it was the perfect moment for a frosted brownie
When she’s passed out and you ejaculate into her butt checks and wipe your dick in between
I woke up, took a shit and realized Jimbo gave me a frosted brownie