Daffy
This trick is done with two boards, one foot in a tailwheelie on one board and another foot on the second board in a nosewheelie. This trick was seen in the Girl Skateboards video Yeah Right!, Gus Van Sant's film Paranoid Park, and the Lords of Dogtown movie. The Tony Hawk's Underground game calls this a "Yeah Right Manual".
It's one of the oldest freestyle tricks.
Variations include rollerskate-like double-board tailwheelies and double-board nosewheelies, but also crossfoot wheelies and spins, or a one-foot double-board daffy, possibly invented by Kilian Martin (2010). It's also possible to "lose" one of the boards and continue with a one-foot wheelie.
Read more about this topic: Freestyle Skateboarding Tricks