Definitions

1. noun

A person who is considered to be clever or intelligent, often in a way that is perceived as showy or annoying.

“The know-it-all smarty in the room dominated the conversation with his opinions.”

2. adjective

Showing cleverness or intelligence, often in a way that is perceived as showy or annoying.

“The smarty in the class always managed to answer the teacher’s questions before anyone else.”