A handkerchief or similar piece of fabric used as a headcovering, created by folding said fabric in half diagonally, placing folded edge against forehead, and securing it by tying three points into a knot at the back of the head. Traditionally worn by young males who are often involved in recreational drug use, hence the term "tripping" helmet.
Dude, I am, like, so high. Let's put on our tripping helmets and go play ultimate.
by kmg November 04, 2006