Hotshot \Hot"shot`\, n. a successful, self-confident person who is regarded by others as highly skilled; -- sometimes used ironically in reference to aggressive persons whose opinion of their own talents is considered exaggerated. [PJC]

Source: The Collaborative International Dictionary of English v.0.48
 

hotshot \hot"shot`\, a.

1. highly talented, self-confident and successful. [PJC]

2. flamboyantly displaying one's skills. [PJC]

Source: The Collaborative International Dictionary of English v.0.48
 

hotshot

Source: WordNet (r) 2.0