(v.) to beat someone badly in any type of game, showing complete dominance over the other player
Origin: From the game Super Smash Bros. by Nintendo, in which both players commonly have 4 lives (stock). Killing another player 4 times without dying once is called 4-stocking, and is a clear show of superiority.
MCYT (Samus) just 4-stocked DREW (Marth). How embarrassing.
Phil Taylor would 4-stock you in a game of darts.