Definition of "wisenheimer" [wisenheimer]

• Informal A smart aleck. (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.

• "Among the other numerous (at least one per page) lovable wisenheimer remarks is this definition: A nebbish doesn't know he's a nebbish ..."
• "Nowadays a journalist and a teacher at Yale University and still somewhat of a wisenheimer"
• "While spending those lonely hours in jail I slowly realized that Gandhi had the right idea, which was to make a point quietly but forcefully, without the wisenheimer commentary."