longboard

Short definition from Wiktionary

Noun

1. 1
   A large surfboard, around 9 or 10 feet long with a wide nose.
2. 2
   A large skateboard, measuring about 90 to 150 centimeters (3' to 5').
3. 3
   Synonym of spine board.

Verb

1. 1
   To travel by longboard.