Top Definition
Someone who believes they've got the answer to every question even if the question hasn't been asked or if they really don't have the answer (... but of course they believe they do). This is not a shy individual, but rather someone whose ego is over flowing primarily through their mouth, but seems to have come from the other end of their digestive system.
Standing in the door of his single wide, Mr. know it all gave me his latest real estate tips.

Mr. know it all told the CIA there were weapons of mass destruction in Iraq. Unfortunately, they were listening.
de polarpaul 25 juin 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt
E-mail quotidien gratuit

Entrez votre adresse e-mail ci-dessous pour recevoir notre Mot du jour gratuitement tous les matins !

Les e-mails sont envoyés par daily@urbandictionary.com. Nous ne vous enverrons jamais de spam.

×