ˌtop ˈdog BrE AmE noun [countable]
the person who has the most power in a group, especially after a struggle:
He always wanted to be the one in control, the top dog.
ˌtop ˈdog BrE AmE noun [countable]
the person who has the most power in a group, especially after a struggle:
He always wanted to be the one in control, the top dog.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012