An attack that hits first and makes the target flinch. It only works the first turn the user is in battle.

from Bulbapedia: Its Japanese name, ねこだまし Neko Damashi (Slap Hands), refers to a sumo technique used at the start of a match to make the opponent close their eyes. Its wide distribution among catlike Pokémon is likely a play on this name, as it literally translates to cat deception.

TODO: this one is most likely possible now