Unknown knowns 

Donald Rumsfeld pithy description of an old southern saying.

Rumsfeld says 'unknown knowns', down here we say, 'He's so fucking stupid, not only doesn't he know nothin', he don't even suspect it.'

Unknown knowns by pshaw August 4, 2014

known unknown 

Something that one knows they don't know.

There are known unknowns, that is to say that there are things that we know we don't know. (whiskey tango foxtrot, Donald?)

known unknown by Bushmonkey October 1, 2006

Known unknown 

These are the things that you know you don't know. Coined by Donlad Rumsfeld, former US Secretary of Defense.

Boss: Are you saying we don't know what this project will cost?

You: Yep, it's a known unknown!

Known unknown by seven8521 October 31, 2009

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