A razor tail is a condition of a skateboard deck when the tail of your skateboard has chipped down, creating a sharp tail edge. It is most commonly caused by dragging a skateboard's tails against the ground while stopping or doing tail slides tricks. When your skate deck develops a razor tail, your board loses its pop, becomes more likely to chip or crack. It also affects how high the board gets from an ollie and other flip tricks. Eventually, it causes the splitting of the plies of a skateboard deck.