From the Super Mario Wiki
Hyper Suction is a Special Move in the Gamecube game Wario World. When the player presses or while there are loose coins around, Wario opens his mouth wide in a Kirby-esque fashion and collects them by sucking them up. Wario can't attack and moves very slowly while Hyper Suction is being used. Wario's Chomp special move in Super Smash Bros. Brawl is similar to Hyper Suction. In Super Smash Bros. for Nintendo 3DS / Wii U, Wario has a custom special move called Inhaling Chomp that is similar, if not identical, to Hyper Suction.