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"He wouldn't talk to me as he had a right cob on" or
"She had such a cob on that she wouldn't even put the kettle on"
Cob on by Elizza June 12, 2006
Having a boner or hard on
Sally: has John got a cob on?!

Jane: yeah! How embarrassing in public
Cob on by Xdst33 November 10, 2018
To have a wank or beat one off to a fellow colleague or friend.

or

To have a bonner/ erection for someone or something.

Cob On It 

Synonym of the phrase “send it”. To do without regard of consequence or outcome.
Friend “Why are you speeding towards that ramp?”

Me “Sometimes you just have to cob on it.”
Cob On It by 5.9 Magnum V8 October 22, 2018

Cob On The Corn 

When the cob grows on corn instead of vice versa.
Dude, harvest was great this year, i got a cob on the corn.
Cob On The Corn by SkeppsRåtta September 4, 2017

Got a cob on 

He's got a cob on because he can't go to the game.
Got a cob on by cbleicester October 29, 2009
More from Urban Dictionary
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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