A person who pretends to be wise or knowledgeable.
Ainsley: Kenneth thinks he knows everything! He's such a wisenheimer.
Morgan: Why do you hang out with him?
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Someone who thinks they are smarter than everyone else. Similar to know-it-all.
Jace is such a wisenheimer, don't invite him.
Someone who thinks he or she is smarter than everyone else.
hey bro your wrong again haha
stop being such a Wisenheimer
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Someone who makes smart aleck, sarcastic comments, often at inappropriate times and usually at someone else's expense.
"Don't smart off to your mother, you little wisenheimer."
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Someone always making feeble wisecracks, who laughs at his/her own jokes and is generally deserving of severe and painful punishment.
That guy is up there thinking we are all listening to his puerile crap, such a wisenheimer.
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a wise ass, generally a nebbish male trying to get over with a humorous, but usually feeble attempt to make someone else the butt of the joke. Wisenhemiers are usually called out and decsribed as such.
youz a f'in wisenheimer and you're gonna end up wit yer dick in yer mouth.
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