A skateboard, also known simply as a board, was a long board with four wheels that could be easily carried and used as manually-operated transport. It was also used in the sport of skateboarding.
Danny received a skateboard as a Christmas present. As part of the Eleventh Doctor's plan to reprogram the Zentrabots, Danny collided his skateboard into a Zentrabot. The Doctor later rode this skateboard to the holding pen containing children held hostage by the Zentra. (COMIC: The Zentrabot Invasion)
Bloorm Vungah Bart Slitheen, in disguise as Heidi Stafford, told Clyde Langer that she gave her son "Ashley" a skateboard for his birthday. Clyde used this as proof that she wasn't his real mother, because he knew full well that Luke couldn't skateboard for his life. (TV: The Lost Boy)