seks Share definition Flag 1. Spelling error on the word "sex". 2. Used to say something is cool. 1. I had seks last night. 2. Man, that guy is the seks! seks by Dominion July 22, 2003 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