Originating from pewdiepie and cinnamon toast Ken's minecraft skyblock letsplay, this is used in situations where one individual does something profoundly easy after struggling, or just want to sarcastically talk about their IQ being high while doing small brain things
*Pewds and Ken finally make the cobblestone generator*
Pewds : Big brain!!
*cobblestone generator breaks*
OwO
Pewds : Big brain!!
*cobblestone generator breaks*
OwO
by Nineyearold123 August 08, 2019

Man: when you leave your shirt out, does that mean your tucking your pants into your shirt?
Guy: wow. That's a big brain moment.
Guy: wow. That's a big brain moment.
by Jonathangg November 01, 2019

by chingchongyouhaveasmalldong October 15, 2019

Means that you’re really smart. If you get called big brain then you’re lucky to have been called so. So now you guys use that brain power!
Person 1: I still can’t figure this out...
Person 2: Wait a sec if I do this... annnd this!
Person 1: NO WAY!!! That was so big brain!
Person 1: Thank you so much, right, let’s go!
Person 2: Wait a sec if I do this... annnd this!
Person 1: NO WAY!!! That was so big brain!
Person 1: Thank you so much, right, let’s go!
by Three-finityBits December 06, 2019

Either your IQ is 100000 And you came up with a really good idea or Your IQ is 1 and you tried to be smart and you failed
by aRandomNoob7 November 16, 2020

Sarcastic reference to people especially politicians, journo's, pundits etc who profess to great wisdom and use college words to show how smart they and how dumb the rest of us are.
Listened to some big brained nibba on the TV last night explaining that boys are better at Physics cos they have willies and are used to handling the fluid dynamics of their urine. Tosser
by FashyKen October 05, 2017

Omg we can save the cat by calling the firefighters said billy bobby replied omg yeah. Billy said haha I have big brain
by BiggieBrainy September 12, 2020
