1) A 1993 movie 2) An animated US TV show 3) A child's game where one player stands on top of a hill or other location atop an incline, attempting to repel other players whose goal is to overtake the hill 4) A person who has achieved a measure of success and is considered to be a leader in his field. (wikitionary.com) Kids sometimes say it to indicate they won, or they made it to the top. Its rather colloquial and implies a certain naive arrogance, which is why its only commonly used by children.

Hi, it is usually expressed as 'King of the castle'. An old rhyme is, "I'm the King of the castle and you're the dirty rascal ". Little boys usually say it to each other when they're playing and one wants to assert his domination over the other. As they turn into adults, they say other things like' Í'm the boss here, not you, so you have to follow my orders'.

Hi, As used in the "house", King-of-the-Hill refers to a special rule for sequencing, debating and voting on competing amendments.If more than one version receives a majority of votes, the one with the largest margin prevails. source: http://www.c-span.org/guide/congress/glossary/king.htm :)