smarty-pants 
(British also smarty-boots)
noun
Another term for smarty (sense 1).Try it out on the office know-it-all, or the smarty-pants next door....
- It does no good in our age of specialization and fragmentation to be a know-it-all smarty-pants, especially if some of that knowledge is at times sadly so superficial.
- Guys see me as a goodie-goodie and a smarty-pants.
- anthropocentrism
- anthropogenic
- anthropogenically
- anthropogeny
- anthropoid
- anthropoidal
- anthropoid ape
- anthropological
- anthropologically
- anthropologist
- anthropology
- anthropometric
- anthropometrics
- anthropometry
- anthropomorphic
- anthropomorphically
- anthropomorphism
- anthropomorphize
- anthropomorphous
- anthropopathy
- anthropophagist
- anthropophagite
- anthropophagous
- anthropophagus
- anthropophagy