That’s when you put your almost completely evaporated good stuff in a big mason jar, roll it around between your hands, to completely coat the inner walls, and blow across the open end. Or, if you a true high class red-neck, you let a fan do the blowing.
All in jest
It works.
But you gotta stop at the right point or all your shit gets stuck in the damn jar 
Maybe even sit the jar on ma’s treadmill…
and if you need vacuum, they have those caps, with a straw in it
Or the Hot dog roller at the gas station.
Oh damn, never thunk that afore…en I cud use the air hose