Slang A person regarded as being disagreeably egotistical and self-assured.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "wiseacre" in a sentence
"The book follows the usual jocular style of the "For Dummies" series (does the publisher have a special "wiseacre" editor?) including the cartoons and the usual "Part of Tens"."
"There was a gang of wiseacre boys who defiled the sacrament of confirmation—the Catholic equivalent of the bar and bat mitzvah—by choosing the silliest saint they could find, "Aloysius," for the confirmation name that the bishop would announce when it was their turn to get their cheeks slapped."
"Hunky wiseacre Ryan Reynolds has announced that his next project is entitled ‘Buried’, a film about a civilian contractor in Iraq who gets captured and buried alive with only a cell phone, candle, knife … … and his wits yo!"