Koxen means: Koxen can be used for anything, but it is most commonly used to mean “dick”, asshole or jackass” and so on. 1. Asshole 2. A penis 3. Anything 4. Could also be used to compliment “mr. Koxen”= “mr. Amazing” 5. Tits… Jill has all koxens. (in Community Dictionary, added by Dingy)