A Khan is always ready for trouble. They tend to be naturally talented and often have (many) friends. They are charming and those around them feel cheerful. They are great at video games and eating cheese. They are (no doubt) able to handle pressure. Basically, (they) are perfect except for the fact that they can (sometimes) obliterate people with their sheer greatness.

The leading antagonist in the episode "Space Seed" of Star Trek: The Original Series. Spawned the second Star Trek movie, titled "The Wrath of Khan". Khan was the leader of the genetically engineered "super humans" created during the fictional Eugenics War (World War III), which occured in the late 20th century. Kirk's famous outburst in the movie, in which he screams, "KHAAAAAAAAN!" is still used today to express rage at a situation.

The name of a pose commonly used for profile pictures on social sites such as facebook. Typically the Khan is performed by a shirtless male often covered in some sort of lubricant where the male has one arm behind the head to accentuate the biceps.

Variations of 'The Khan' include

'The 2 handed (or Double) Khan' where both hands are placed behind the head. (useful in those situations where 1 hand just isn't enough) and the ever-popular 'Inverted Khan'.

A word used to express emotions of a variety of sort, such as anger, confusion, contentment, and so on. It depends upon the tone of voice and context to determine the specific use of the word. Most often used (and originally used by James T. Kirk) to express rage, when it is drawn out.

The one soul you don’t want to lose or he’ll beat ya ass because he’s just like that. He could love the place he’s in or just despise it and in general he’s lovely

lord of the underworld and master of pain

A term used for a young male who has great aspirations of one day becoming a man. Notably lacking adequate masculine genetalia.