Wisenheimer

//ˈwaɪz(ə)nˌhaɪməɹ// noun, slang

Definitions

Noun
  1. 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. 2
    an upstart who makes conceited, sardonic, insolent comments wordnet

Etymology

From wise + the German demonymic ending -enheimer.

Next best steps

Mini challenge

Unscramble this word: wisenheimer