smart aleck
noun
University
1
One who is given to obnoxious or insolent humor.
2
One who is pretentious about their own cleverness or knowledge.
3
One who is obnoxiously self-assured; a show off.
4
A well-dressed person.
Thesaurus
#rare
One who is given to obnoxious or insolent humor.
One who is pretentious about their own cleverness or knowledge.
One who is obnoxiously self-assured; a show off.
A well-dressed person.