"Jumping jack" as pronounced by Mexican laborers who don't speak good English. A jumping jack is a hand operated piece of equipment that compacts soil at a construction site.
Boss said to use the yumping yack on dees dirt over here
The act of being popular and to cool. Doing drugs and never giving a fuck because you are so fuckingpopular you dont care.Only yumpers may go, or be yumping.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.