Someone thinks they know something but are totally wrong. They will argue with you even when proven wrong.
The know-it-not-at-all girl argued that vaccines cause autism.
by Cheri Conners RN February 23, 2019
Get the Know-it-not-at-all mug.Someone who goes around thinking things are big and clever, and believe they know it all about everything, but don’t because their still things he / she don’t know about just yet.
by Urbantheturban July 8, 2019
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knows it • everybody knows it • you knows it, I grows it • the worst and knows it • Love knows not what time it is • word-by-me-which-no-one-knows-or-uses-because-it-is-not-in-the-Webster-dictionary-so-I-wrote-this-word-in-the-Urban-Dictionary-site-which-gets-my-creativity-of-words-into-action • know it all • Knowa-It-All • know it • know it all attention whore
A lot of people confused the guy with a know it all. He didnt think he had all the answers to everything, but he was sure of which ones were bullshit.
by Solid Mantis June 9, 2020
Get the Know it all mug.A know it all is someone who thinks they know everything, and refuses to take anyone else's opinion into consideration because, naturally, they know it all. Also known as a Brian.
I have green eyes but my boyfriend Brian insists that I have hazel eyes. Clearly he is a know it all.
by Arniverna September 9, 2022
Get the Know it all mug.by MaryTurderQueenofFarts June 30, 2023
Get the Know It None mug.A name given to a person that expresses basic common knowledge about a subject, by a person that doesn't know shit about fuck on said subject.
Me: Hey Edgar, maybe you should just check to see if the outlet is blown before you start taking apart the DJ's mixing board.
Edgar: Oh dang man, that actually worked! Quit being such a know-it-all, you're making me look bad.
Edgar: Oh dang man, that actually worked! Quit being such a know-it-all, you're making me look bad.
by Methkateer December 22, 2023
Get the Know-it-all mug.A little boy who thinks he knows everything about anything.
Started off of Popular Dem Influencer Knowa De Baraso
Started off of Popular Dem Influencer Knowa De Baraso
by SpillBeans123 February 17, 2025
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