The Couch effect 

falling in love: as you become closer and have more feelings for them, you sit closer and closer to them on the couch/chesterfeild.
the end result being that the pair sit in the middle of the couch

jim and jill meet: they sit on opposite ends of the couch at a party

jim and jill begin to like each other: they move in a bit closer( the couch effect starts working)

jim and jill fall in love: they sit in the middle of the couch (the couch affect in full swing)

The Couch effect by cyanide hearts December 16, 2008

The New Coach Effect 

The positive effect a new coach has on his football team, immediately following his appointment.

A football team appoint a new coach after a run of poor form where the previous coach has either been sacked or has resigned from his position.

The mere change of coach is enough to turn the teams fortunes around, instantly. This is known as the new coach effect.

The New Coach Effect by The A-League Show November 27, 2012

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

schmegegge 

Yiddish slang word meaning bullshit, baloney, hogwash, nonsense, crock of shit or hot air.

I don't buy the schmegegge about Morty sleeping with Moira.
His version of the story was pure schmegegge.
The whole schmegegge was made up to get Liz a little bit of attention.

schmegegge by budsbabe February 1, 2008