The name of an vile enemy in the original Star Trek series. You usually use it after getting like really mad and blame someone. This is what William Shatner did on the T.V. show Family Guy. (And if you think this definition sucks, make a better one!)
Another definition? Bellowing scream of rage also used by george in a Seinfeld. For that matter Shatner (as Kirk) used it in a Star Trek movie in response to being abandoned by Kahn (played by Riccardo Montalbahn).
KAHN! pronounced as, "Kahhhhhhnnnnnn.....!" in a shattering call rising from the depths of despair.
A phrase generally yelled loudly, such as with Kaaaaaaaaaaaaaahn! Most common misspelling of Khan and Khaaaaaaaaaan! In reference to Khan Noonien Singh of Star Trek "Space Seed" and Star Trek II: The Wrath of Khan fame and Shatner!Kirk's most famous bellow from the depths of Regula.
Every time Nero said "Spock!" in the last movie someone yelled Kahn!
A real musical affiliated guy, usually plays guitar and sings with it to make girl's hearts melt. Also plays piano and drums and will become famous in the music industry. He is also very attractive and a hit with the ladies.