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A poorly conceived idea of seemingly insurmountable proportion. Originating from software development process, a cliffberg is the inevitable result of starting off with a bad idea and sticking with it doggedly until the bitter end, rather than stopping and re-evaluating because the process has become more important than the product.
I think that's a bad idea and it's just the tip of the cliffberg.
Cliffberg by char const* May 29, 2024
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Cliffbanger 

The explosion that hack TV writers use to create suspense in a season finale.
I wonder who will die in the cliffbanger, this year?
Cliffbanger by scotte61 October 25, 2012

cliffdering

Bouldering on the side of cliffs.
Usually short cliffs.
Look there's a cliff, let go do some cliffdering.

I just got back from this desert trip, and along the way home I spotted some hot chicks climbing all over these cliffs, so I stopped to have a quick cliffdering session with them.
cliffdering by Crunchyness June 10, 2007

Cliffers 

A horrible gremlin type thing for example small griff, who lives in a nitty house, have no money and think there solid when they get bang by BS4 THE BEST
Oh look there’s some stinky cliffers over there. You should never go into Hartcliffe
Cliffers by Cliffers are smelly October 3, 2019

Clifberger

A human footprint left in concrete or pavement.
That guy is so fat, you can follow his clifbergers to find him.
Clifberger by Holehearted June 11, 2018
A worser version of a scab freeloader or mooch.

1. noun- a person who goes into your house uninvited, eats your food without warning. The human form of a parasite

2.verb- cliffing, the act of being a cliffer.
Watch out! That damn cliffer is around... Lock your doors!
cliffer by JBALLZ07 October 21, 2008

cliffbanger 

cliffbanger: the act of banging your head against a wall or cliff, after a tv series ended with a cliffhanger.
House MD has ended with yet another cliffbanger, what are u doing? just banging my head against a wall.
More from Urban Dictionary

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

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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