The act of sliding on the ground while kicking, as done by Kirby in Nightmare on Dreamland for the GBA. Commonly used as a solution to any problem in a video game.
Guy 1: ARGH! I can't beat this three snake boss in A Link to the Past!
Guy 2: Have you tried.... SLIDE KICKING?!
Guy 1: No....
Guy 2: WELL DO IT!
Guy 1: HOLY S*** IT WORKED! Thanks, bro!