wisenheimer[noun]Synonyms: smart aleck, know-it-all, *smartass, smarty, smarty-pants, wiseacre, wisecracker, wise guy, wisehead
[TahlilGaran] English Synonym Dictionary ▲
wisenheimer noun.
['wʌɪz(ǝ)nhʌɪmǝ] US colloq. E20.[from WISE adjective + -(n)heimer as in such surnames as Oppenheimer.]A wiseacre, a know-all; =
SMART ALEC.
[TahlilGaran] English Dictionary ▲