Checkup from the neck up 

Suggesting this is a way of saying someone is talking or acting crazy. Used to express disbelief, skepticism, or simple mocking. Indicates a level of ridicule serious enough to move the subject away from what the other person has said, and onto the state of mind of the speaker.

"If you think you can get away with driving 50 more miles with the 'Empty' light on, you need a checkup from the neck up."

Checkup from the neck up by Feb July 30, 2008

Checkup from the Neck up 

A mental health examination.

"Dood needs a checkup from the neck up!"

Checkup from the Neck up by Dr. Shatner June 6, 2004

checkup from the neck up 

When a girl has a nice body, but her face is busted!

Playa 1-"Yo, shorty's body is tight!"
Playa 2-"Yeah, but peep her face. She needs a checkup from the neck up!"

checkup from the neck up by BigBad Wolf June 11, 2006

Cheeks 

An Irish phrase meaning shit, derived from ass
(Not to be confused with the literal description of one's buttocks)

"Did you hear the song Aylek$ dropped?"
"Hardly. Her music is absolute cheeks."

"My boyfriend say LaFlame is cheeks."
"Tell your boyfriend I said it's his mixtape that's cheeks."

Cheeks by thecartisan April 26, 2020

sans sheriff 

Lawless use of fonts or typography, with no regard to aesthetics or legibility

I'm putting this CV straight in the bin. Written totally sans sheriff.

sans sheriff by Jamarley July 3, 2019

Breadhead 

Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".

A breadhead is like a crackhead, but for money instead of crack.

Breadhead by 🅱️ U S 3 4 8 March 30, 2022

Stink lines

As seen in illustrations or cartoons: Wavy, vertical lines rising above a person, place or thing. Denotes a foul odor.

"You didn't put enough stink lines on your picture of the teacher."

Stink lines by Athene Airheart March 14, 2004