WSAD (v) wuh-sad: to make something ergonomic, or improve it's usability. "I was totally confused by the toolbar until I WSADed it by rearranging the buttons." "The game controls used the arrow keys, I had to WSAD it.
This comes from the world of first-peson shooters. There was a time where most games used the arrow keys to control movement- I mean, they were arrows, you use them to move, right? However, as games got more complex, you needed to reach more keys more rapidly- and lifting your hand to hit "r" to reload makes no sense. Instead, the W,S,A and D keys get used now- there's a whole slew of other keys within quick reach from there without moving your hand.
This was inspired by reading the review of a brilliantly designed controller the n52.