What is Smart One?
1.
Someone who thinks they know everything but knows nothing.A polite way of calling someone a smartass around proper people or company.
Johnny, you are such a smart one. Or ....Nice going smart one.
2.
smart one is just a sarcastic way of saying someone is a dumn nut.
"most of my friends are smart ones"...or "man u r such a smart one"
See
3.
one who lives in their own universe
so smart it scares him,and everyone else.
