under the arm 

Liverpool slang from the 1960s, possibly earlier, meaning 'bad or terrible'.

"What did you think of that book I lent you?"
"It was under the arm!"

under the arm by Cloonan November 18, 2013

Above the tree, under the arm 

When you get stuck trying to explain something. Not knowing what to say in a conversation.

Someone: “What does that mean?”
Me: “I don’t know, above the tree, under the arm.”

Above the tree, under the arm by Ghanoy December 23, 2018

Zombie Army Under The Sea

While being exported to Fascist Dictatorship Island, a zombie can have many adventures, experiencing all the sights and sounds on the sea floor before being shot out of a cannon to fight for the great Libernazi.

"Blub, blub, blub, brains, blub."

Zombie Army Under The Sea by Fagbot and jessor December 27, 2003

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