from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Slang One considered to have the dominant position or highest authority, especially as a result of a competitive victory.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the boss, the leader (of the pack)
  • n. in a competition, the one expected to win

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a person who is in charge


Sorry, no etymologies found.


  • I had defended my title several times over the years, and once I became the top dog on the mixed martial arts scene, I brought fans down on both sides of Tito Ortiz.

    This is Gonna Hurt

  • She led up to it by talking of her husband's ambition to build a church and hall over at Kowloong; even in those days it was the fashionable place, so he would be quite top dog among the local gospel-wallopers.

    Flashman and the Dragon


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