When a girl or guys vagina or anus is loose to the point where you have to stick your hand in and jerk yourself off inside of them, like shaking a Yahtzee cup.
Silviu's ass was so loose, I had to get my whole wrist in there and give it the Yahtzee treatment.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.