What is the meaning of Kook?

An eccentric, strange or crazy person.

A boardsport participant who lacks style or skill; a newbie who acts as if they are better at the sport than they are.

inflection of koken:

  1. first-person singular present indicative
  2. (in case of inversion) second-person singular present indicative
  3. imperative

first-person singular present indicative

(in case of inversion) second-person singular present indicative

imperative

cake

Source: wiktionary.org