Goes like this:
Hit stick forward like an F-Smash/dash.
A split second afterward hit down on C-Stick (dependant on Smashes being set to C-Stick)
The result? A dash attack without even one frame of actual dashing. Yay. This works wonders with Snake, as well as with Ike (who has a dash attack that covers huge distance).
They are also known as “Alpha Cancels”, on the request on the people on the srkbrawl IRC. It’s a pun on the people who name techniques after themselves on SWF.