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 allmug. An expression used when something inherently bad happens during a gathering or event in an attempt to dismiss it as “in the grand scheme of things, it was supposed to happen”. Also often justified with “we’ll look back at this memory and laugh”
— “Did you hear Steve and Aaron jumped the fence to the school and ended up getting arrested?”
- “That sounds badass”
— “but they got arrested...?”
- “It’s All Part of the Experience shitlips”
- “That sounds badass”
— “but they got arrested...?”
- “It’s All Part of the Experience shitlips”
by pissdivision March 26, 2022
Get the It’s All Part of the Experiencemug. by Mikkiscarbelly August 5, 2022
Get the ALL-A-HOLLICmug. This web-page looks completely different from how it was a few months ago --- all I configure is dat it must have had a total overhaul or upgrade at some point since I last saw it.
by QuacksO October 18, 2025
Get the all I configuremug. A footballer ( or soccer player if you are from the US ) that has no fucking idea what they're doing, and they're just running around the pitch.
by berber16 May 7, 2018
Get the all around the gafmug. 
feminist: "My boyfriend cheated on me!! all men are pigs"
normal person: you shouldn't say "all men", also didn't you cheat on him first?
normal person: you shouldn't say "all men", also didn't you cheat on him first?
by furry innihilator June 13, 2022
Get the all menmug.