Pivoting
Pivoting, or DA Dashing, is a technique in Super Smash Bros., Super Smash Bros. Melee, and Super Smash Bros. 4 that lets a character use attacks out of a dash. The tactic was discovered by Philly Billy.
The technique makes use of the time frame at which a character turns during a dash; any normal ground options are available as if the character were standing still - smashes, grabs and tilts can occur here without the lag that usually comes from using these attacks after a dash. Normal pivoting is primarily used so that a character can quickly change the direction they are facing whilst not suffering the usual turn-around lag that would occur when doing so. This can allow characters to improve the utility of various moves in certain situations.
One use of pivoting is to dash a short distance away from an approaching opponent and then turn around to attack them with a forward tilt, forward smash or grab. This is particularly useful for characters with disjointed attacks or far-reaching grabs. Pivoting can also be used to punish rolls and techs, as pictured.
It is also possible, though difficult, to perform a pivot without attacking, causing the character to simply stop and turn around without any lag. This is known among SSB4 players as a perfect pivot.
In SSB4, performing a pivot grab results in a grab with longer reach than usual. Such pivot grabs can also be performed in Super Smash Bros. Brawl, where pivoting is otherwise not possible.