an important person, a boss, a big wheel
On payday he spends money like a big shot, buying drinks for all.
(n.) See also: The hot shit, pezzonovante, big man on campus.
A person who holds a great deal of clout in whatever industry/culture that they are a part of.
Someone who is looked up to by people who tend to be followers.
Used derogatorily by people to infer that the person "thinks" that they are important.
Yeah man, that guys are real "big shot" in the film industry.
That midget is a big shot drug dealer.
Look at that expensive car that girl is driving! I bet she thinks that she is a real "big shot"