Word made popular by a character on South Park. Mr. Dirp. A bumbling idiotic substitute teacher that randomly hits himself in the head with a hammer, and saying Dirp. Used when someone makes a stupid mistake or makes an ass out of themself
Did you see that guy trip onto that bed of nails, dirp
DIRP is an acronym that stands for "Direction Indicating Rock Pile." It is a term used mainly by hikers referring to a man-made pile of stones (also known as a cairn) built along a trail to mark the route where it may otherwise be hard to follow. Sometimes it may also indicate a destination or location of interest.
Jack: "I have no idea where the trail goes from here."
Jill: "I see a DIRP; the trail is over there."