(collective noun) individually small pieces of leftover chips left in the bottom of the bag, often no more than a half-inch by inch or smaller, which make up half the weight but 1/8 the space of every bag of chips, doritoes, pretzels or other snack material; forces those eating to pick up small stacks or awkwardly held bunches if you want to use the dip. (See also corn dust) Causes greasy fingers.
I accidentally dropped a bag of chips and created more potato dust at the bottom.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.