Deck Share definition Flag To punch someone very hard, knocking them to the ground in some cases - hence "deck", to "deck" someone as in putting them on a deck. Johnny decked Tim, and he fell to the floor his face bleeding. Deck by Theo Townsend February 27, 2004 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug