No-Brainer

When a girl is giving head to a man and his dick goes up too far inside of her mouth and it punctures her brain.

"Yo! I gave Janet a No-Brainer last night! I think she's in a coma!!"

by Nerdness October 31, 2017

snow-brainer

a no-brainer but in terms of winter-appropriate attire and overall winter safety in northern countries like Russia, Canada, Scandinavia and parts of New England, among others

wearing at least a coat and winter boots, and not just a mini-skirt, is simply a snow-brainer. all this to say to say yesterday i met a girl outside my fav Irish pub wearing nothing but a mini skirt and some tank top, talking on her phone. I asked her if she wasn't cold, and to get a coat, which was also a snow-brainer on my part.

by Sexydimma January 11, 2015

stinky brainer

Someone who isn't smart

Christian Walker is such a stinky brainer

by Annoy Boi November 22, 2019

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."

by Erik Patterson July 16, 2008

brainer lips

someone who has rich full lips that are good for sucking dick

"wow that bitch has some huge brainer lips"

by Justin F January 12, 2005

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.

by ybcuber September 5, 2018

Smooth brainer

A slang used to call someone dumb, stupid, of low IQ, etc.

Origin: As the amounts of folds on the cerebrum of a mammal brain determines the intelligence of the being, having no folds would mean that they have on intelligence.

Ignore them, they're just some smooth brainers

by RAPHlEL March 15, 2023