Meaning of wisenheimer in English:

wisenheimer

noun

informal US
  • A person who behaves in an irritatingly smug or arrogant fashion, typically by making clever remarks and displaying their knowledge.

    ‘The wisenheimers who paid no respects to such dolts did not get us into this mess - straight-faced true believers of all stripes did.’
    ‘It was always tempting to try and prove that one was enough of a wisenheimer oneself to appreciate anything they could dish out.’
    smug, self-satisfied, pleased with oneself, proud of oneself, self-approving, self-congratulatory, self-admiring, self-regarding

Origin

Early 20th century from wise + the suffix -(n)heimer found in surnames such as Oppenheimer.

Pronunciation

wisenheimer

/ˈwʌɪz(ə)nˌhʌɪmə/