The story
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A short (often less than 6'), broad (sometimes extremely broad) surfboard designed to be ridden in the surf in a kneeling position, and often having traction pads in the central area as an alternative to wax, to help the knees grip the deck. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.