half mental 

Almost crazy. Bordering on "mental," which is completely insane.

One who acts like a retard, even though he does not have a condition of mental retardation.

Dude, I can't stand living with Jake anymore. He sits in the living room doing hot rails and playing World of Warcraft all day. I mean... the guy is driving me half mental!

That new kid is half mental. He smells like burnt onions, he can't dress himself and he always has mustard stains on his shirt.

half mental by sc0ner June 20, 2010

check, "get a check" (as in a Disability check for Mental Illness) 

used to express exasperation after explaining a topic to someone whom is just not getting it

No girl, a asshat is like someone who has their head up their ass.

How can they have their head up their ass when you said they have a hat on it?

Girl, you can get a check!!!

check, "get a check" (as in a Disability check for Mental Illness) by vee stevens March 18, 2005

inter-mental 

Be it a misconception, a fantasy, or a thought too devious to share, something that is inter-mental exists only in your head and quite often should be kept that way.

Can also be used to describe a similar thought shared by two individuals who suddenly realize they are thinking the same thing without even saying it out loud.

"Sick, dude. Next time you have a thought like that, keep it inter-mental."

"That's ok, baby. You don't have to tell me what you want. I got that inter-mental."

When that big girl in the ghetto fabulous outfit with her bra showing through the key hole back in her shirt and the frilly purple mini-skirt that doesn't even cover her butt walked by us, we were both overcome with inter-mental amusement and shared a laugh without saying a word.

inter-mental by Gwydion808 March 23, 2010

Oxygens Mental Hospital

The worst fucking place on the internet. Everyone in it has some form of STD.

Oxygens Mental Hospital is probably on fire right now.

Oxygens Mental Hospital by Rubedo January 9, 2021

THATS MENTAL 

When u hit an amazing trickshot

OMG OMG OMG THATS MENTAL OMGGGGGGGG

THATS MENTAL by rEATS April 18, 2021

Atheist Mental gymnastics 

A phrase used by those who cannot handle analytical
thinking and can only handle simple thinking and simple
explanations. Atheist Mental gymnastics is required to figure out
difficult questions and topics.

Normal people: God is real he created everything
Atheists: wrong and I have nothing to prove it
Normal people: bruh that's some serious Atheist Mental gymnastics because you'll still die

Atheist Mental gymnastics by Atheistsarelyingtothemselvs November 13, 2020

FEMD - Feces Eating Mental Disorder

Feces eating mental disorder - A homosexually related mental disorder (not to be confused with GRMD) most commonly found in the white male population in varying degrees, which brings a strong sense of curiosity towards the same sex and eating Feces (often of both genders) as seen in many films. Unlike other races this may be a known problem as white people's pubic hair and feces are the same color, which may explain why it's not seen as disgusting in the white community. Unfortunately there is currently no cure due to the varying degrees found.

-FEMD - Feces Eating Mental Disorder
Random guy - "Why are you so happy?"
White guy - "My wife let me eat her ass out last night again"
Random Guy - "Did you kiss her?"
White Guy - "Of course"
Random Guy - ""Shakes head... white people and their FEMD..."

FEMD - Feces Eating Mental Disorder by Az Lee August 6, 2021