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weisenheimer

[wahy-zuh n-hahy-mer]
noun
  1. wisenheimer.
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wisenheimer

or weis·en·heim·er

[wahy-zuh n-hahy-mer]
noun Informal.
  1. a wiseacre or smart aleck.
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Origin of wisenheimer

1915–20, Americanism; earlier also wiseheimer, equivalent to wise1 + -(en)heimer, extracted from surnames with this ending
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018