Wisenheimer
/ˈwaɪz(ə)nˌhaɪməɹ/ noun, slang
noun, slang ·Moderate ·College level
Definitions
Noun
- 1 A self-assertive and arrogant person; a wiseacre or smart aleck. US, informal
"There was an auto salesman in here yesterday that claimed you could always tell a fellow's class by the car he drove, but I says to him, 'Don't be silly,' I says; 'the wisenheimers grab a look at a fellow's nails when they want to tell if he's a tin-horn or a real gent!"'"
- 2 an upstart who makes conceited, sardonic, insolent comments wordnet
Example
More examples"There was an auto salesman in here yesterday that claimed you could always tell a fellow's class by the car he drove, but I says to him, 'Don't be silly,' I says; 'the wisenheimers grab a look at a fellow's nails when they want to tell if he's a tin-horn or a real gent!"'"
Etymology
From wise + the German demonymic ending -enheimer.