fell off the wagon 

When one resumes an addictive/compulsive behavior that they are trying to control. Originally referred only to drinking, but is now used in reference to all sorts of things including drugs, smoking, overeating, eating cerain foods, masturbation, casual sex, pornography...

Joe hadn't had a drink in 10 years, but when his wife of 30 years left him, he fell off the wagon.

fell off the wagon by not_really_me March 15, 2004

fell off the wagon 

Originally a phrase used when an alcoholic resumes drinking. The wagon is presumably the high school or college band wagon. In the 1950s, schools used to hold pep rallies for football teams. Often the music band would be on a wagon and the enthusiastic students would hop on the wagon. Alcohol was not allowed on the wagon. The phrase "back on the wagon" refers to one who quits drinking and hops on the band wagon, with a positive spirit, supporting the team and school. In other words, one who is happy to not drink. Relapsing into alcoholism is often sudden and unintentional, hence the description of falling off the wagon.

I guess John fell off the wagon last night, he was hammered.

fell off the wagon by ScottDMF November 27, 2015

Wheels fell off the wagon 

A phrase used to indicate that a romantic or sexual relationship has ended, or is, as when the wheels do fall off a wagon, kaput. Sometimes heard as "wheels fall off the wagon" or "wheels falling off the wagon"

"She found out he was also shagging her brother and so the wheels fell off the wagon then."

"Her incessant screwing around on him made the wheels fall of the wagon, and he dumped her."

"If he keeps that up, I can see the wheels falling of the wagon soon."

Wheels fell off the wagon by Alexandra July 29, 2004

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