Biography Wikipedia
Wikipedia:
The expression top dog is an idiomatic for the boss or the leader. In a competition, it is also the favorite or the one expected to win, and the opposite of the underdog. It may be a shorthand reference for a dominance hierarchy.
The name Top Dog may refer to:
Top Dog (film), a 1995 action film with Chuck NorrisTop Dog (rapper), member of the hip hop group O.G.C.Top Dog (comics), a character from The Secret Life of Top Dog seriesTop Dog, another name for the card game Big Two