Define No Brain Meaning

No Brain
Someone so clueless, stupid, or oblivious that you are certain they have nothing between their ears.

I can't believe Jon can't use a tape measure. What a no brain.
By Melantha
No Brain
3l337 godfather of all things 0wnag3
n0_131241N
This little guy stole my woman, then dumped her. What a guy! Whooooo!! He always whipps muh ass in Counter-Strike and Unreal Tournament

dude!!!!1!!11!111! n0_131241N just pwned the living hell out of me! Hell he is sexy!
By Jourdan
Brainful
1. Stereotypical britbong with an obscene love for Harry and Meghan
2. A person with a tiny skull and medium sized brain
3. The biggest boomer you know

Droolio: Did you see the Oprah interview with Harry and Megan. It was soo good, I loved it.

Nakia: Sigh...whatever you say brainful
By Becki
The Brain
When u grab your sack and squeeze forcing your balls to go tight against the skin, causeing THE BRAIN!!!

Dan-THE BRAIN!!!
Steve-AHHH WTF DAN
By Kirsteni
On The Brain

By Bernetta
Brained
Verb. To be hit really hard in the head.

I got seriously brained against a brick wall and I still can't see straight.
By Mira
A Brain
What idiots lack.

By Antonella
Brain
Another word for head, or blowjob. This term is most appropriate however, because unfortuantley, most male brains reside in their penile regions

"That girl has a foot long tongue, I bet she gives great brain!"
By Shani
Brain
To strike a person in, on or upside the head deliberately and violently oftentimes with a blunt object.

Nick told Jerry, "Pay me what you owe me or I swear I'll brain you with this crowbar".
By Louella
Brain
Something that Justin Bieber fans don't have.

Susan: I have such a huge crush on JB!

Bill: I always knew you had no brain!
By Odella