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The last part of a joint to be smoked, North London c.1970. Etiquette would be to refuse it, as you're likely to be burning cardboard.
"Hey man, want the zeff?'
zeff by B&H September 23, 2008
Related Words
Zeff = no lifer
Zeff is a no lifer, retard indian nigga with no friends and who's mom get fucked every night by stranger.
Omg look zeff is there run eww
zeff by Thetdar5272rr June 3, 2023

leo zeff 

Oakland psychologist and psychotherapist Leo Zeff, "the Johnny Appleseed of MDMA", pioneered a variety of drug-assisted therapies with his patients. Zeff was no ordinary therapist. He once wrote about dancing with a Torah while tripping on LSD.

Dr Zeff was introduced to MDMA by Dr Alexander Shulgin. Zeff's response was wildly enthusiastic. He postponed his retirement and began to proselytise.

Dr Zeff introduced MDMA to hundreds of his fellow therapists across the USA. Zeff christened MDMA "Adam". The name was chosen because the drug typically strips away a lifetime of anxieties, self-protective inhibitions and ego defence-mechanisms - returning the user to an allegedly primordial state of innocence.
leo zeff by funkspiel February 13, 2008

The Zeff 

"doing the Zeff" means crashing into a parked car in the middle of the street in car racing.
"George made the Zeff in the 24h race"
The Zeff by Salty_Toad July 23, 2022
A gorgeous artistic person who has amazing style sense and unusual sense of humor.He /She expresses inner beauty through art and so the final product is amazing. although a Zeffi normally has a negative outlook on life you can't help but enjoy time with a Zeffi.
person 1: You are so cool!

person 2: I know.
person 3: her name is Zeffi after all.
A zeffer is a fanboy or fangirl of the small streamer named Captainzef. Just Like the term "Jake Pauler", Zef, is what he goes by, decided to name his group of viewers the zeffers. His viewerbase loved it so much they go by the zeffer gang now.
Dylan: Shoutouts to zef and his zeffers bro!
Rob: the fuck is a zeffer?
Dylan: Only the best fanbase around the internet! *dab*
Zeffers by Zefman9000 January 17, 2018
More from Urban Dictionary

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026

funflation 

The recent boom in consumer spending on entertainment and experiences with a high demand running up the cost of enjoying of those experiences.
I’m trying to go to this Taylor Swift concert but the funflation has made it so impossible for me to afford tickets.
funflation by Dfree523 November 17, 2023
Word of the Day on October 13, 2026
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
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