knee·board 
(nēbôrd′)
(nēbôrd′)n.
1. Sports A short surfboard or wakeboard ridden in a kneeling position.
2. A clipboard used especially by pilots during flights for holding maps and checklists.
intr.v. knee·board·ed, knee·board·ing, knee·boards
Sports
Sports
To ride a short surfboard or wakeboard in a kneeling position.