Kook or KOOK may refer to: A Yiddish surname meaning "look" Abraham Isaac Kook, Chief Rabbi in the British Mandate of Palestine, considered to be Israel's first Chief Rabbi. Zvi Yehuda Kook, son of the above, prominent Religious Zionist rabbi. Hillel Kook, nephew of Abraham Isaac Kook, prominent Revisionist Zionism activist during World War II. As a pejorative: An unskilled surfer, skateboarder or snowboarder (External Link) Crank (person) net.kook, a crank who surfs Usenet newsgroups (E… (More on Kook)