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The need to keep quiet about an impending event, or an event with a positive outcome that has already taken place, in order not to jinx a future outcome.

Derives from the word Clam, a bivalve seashell with the ability to shut its valves tight to prevent anything from coming in to or out of the enclosed space housing the organism itself.
Footie Pundit on TV: "Leicester needs to win three more games to win the Premier League. This is going to be one of the greatest upsets in football history"

Leicester diehard: Clamz, you jinxing knucklehead!
Clamz by tnosugar June 15, 2016
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clamball 

A 50/50 mix of Fireball Cinnamon Whiskey and Bud Light Chelada with Clamato, served at 95 degrees fahrenheit over ice. Best consumed with in a hot tub.

Perfect for buttchugging.
Yo dude, wanna buttchug some clamball before we hit the party?
clamball by meatypop October 31, 2014
Related Words

clam dip 

The creamy white substance that excretes from the female genetalia.
When I took my finger out her pussy, I had to wash all her clam dip off my hands.
clam dip by Preluder August 20, 2006

clamacious 

Having the type, or quality of being clam (clam the animal)
"This food I ate is very clamacious," she said "tastes like a clam."

The Drunken Clam

A place where Peter Griffin drinks and gets drunk with Brian Griffin on the hit tv show Family Guy!
Did you see Peter at the Drunken Clam with Brian Griffin?

Clam Strips

Labial lips, i.e. from the "bearded clam".
Allyson: I have a taste for some blackened clam strips.
Tonayleeza: I got some of them you can have!
Allyson: Great! I'm ready to eat some clam strips now!
Clam Strips by Vermont Fag November 3, 2016

clam cooking 

Another name for vaginal steaming, often done because a person believes it is healthy despite it being very unhealthy.
Despite medical advice, Beth believed her yoni needed cleansing. So she went to an alternative clinic to get a clam cooking. Beth is an idiot.
clam cooking by Nutzen YerMouf February 22, 2018
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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