No Brainer

Not needing a brain to operate task in question

Hey, working a till in Macdonalds is a no brainer which is just as well as chavs need the work

No Brainer by Little Miss Mayonnaise May 29, 2005

mo' brainer 

noun. A situation or puzzle or predicament that is more difficult than it at first seemed; the opposite of a "no brainer"; something that requires more than one person (i.e. mo' than one brain) to figure out.

Uma thought that the Soduko puzzle would be easy, but it turned out to be a "mo' brainer."

mo' brainer by Erik Patterson July 16, 2008

Why is that even a brainer? 

alternative phrasing for "it's a no-brainer", meaning, "Yes, of course, it's obvious."

"Go see the Hunger Games? Why is that even a brainer?"

Why is that even a brainer? by Doctor Science August 9, 2012

no-brainer 

Something so obvious to be correct/appropriate, that it requires no contemplation to decide on.

It was a no-brainer for Zack to wear a condom when he banged that disease infected whore (ewwwww).

no-brainer by efulitz January 8, 2004

the brainer

It's when you grab the skin between your hanging balls and your cock and then tighten your grip all the way up to your balls forcing them to really stick out, this makes your sac look veiny and bumpy like the top of a brain.

I asked my girl to examine a spot in my testes, when she came in for a closer look, I tightened up my grip and hit her in the eye with the brainer.

the brainer by allen powell January 16, 2006

Flat Brainer 

AKA Flat Earther, they belong to the Flat Brain Society. They think the Earth is flat and that some evil dudes made it a globe. You cannot argue with them, they have bogus logic and get very angry when you prove they are wrong.

I was banned from a flat brainer discord after proving their argument wrong! lmfao
It went like this:
Him: "That lens represents atmospheric refraction"
Me: "Actually, the atmopshere acts more like a wedge lens, not a fresnel lens"

(I don't actually know the correct lens, I was just setting up a trap.)
Him: "How can you prove that it acts as a wedge lens?"
Me: "How can you prove that it acts as a fresnel lens?"
Him: "You are just doing hand-wave dismissals, you are yet to answer my question!"
Me: "Are you kidding me?"
*gets banned*

That guy is a flat brainer, he thinks the earth is flat. No power in this world can make him think otherwise.

Flat Brainer by ybcuber September 5, 2018

No brainer

A girl who does not give head

person 1: I pulled my wee wee out and she did not want to suck it

person 2: yeah she is known as the only girl who doesn't give head she's a no brainer!

No brainer by DefTheDefguy July 25, 2022