What is a Clever Clogs?
clev·er clogs
ˈklevər/ kläɡs,klôɡs/
(British) A person who is irritatingly and ostentatiously knowledgeable or intelligent.
(English) A smarty pants; a smart alec.
"Trevor wasn't trying to be a clever clogs, he just always knew the answer to the question before everyone else."

