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Not actually slang for anything sexual...but it sounds like it should be, shouldn't it?

Bastardization of knackered. Sounds like knocked up.
1: I hear you were up all night last night...
2: Yeah, I was getting knockered by my girl

3: "I was knockered, then I was right knackered"

4: Knockered isn't sexual slang for anything, but it SHOULD be.

5: I'm already knackered enough as it is.
6: Knackered? Surely you mean KNOCKERED!
knockered by CannedLizard February 10, 2004
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Monumentally fucked
Trinity downed a bottle of vodka and was absolutely knockered
Knockered by Taishokukitten November 22, 2016
"my dog is going to the vet tomorrow to get knockered." "if his girlfriend finds out what he did he'll end up knockered."
knockered by slippery giblets September 26, 2018

knockered-up 

The state of having one breast enhanced. Boob upgrade
Ash had a smokin body, but even more so now that she knockered-up.
knockered-up by phocusthepoet November 2, 2008

Slobber Knockered

A state of being extremely intoxicated to the point there is loss of motor function.
Sorry Jimmy I couldn’t answer your call last night I was really slobber knockered

Gobble knocker 

The act of gobbling down the male genitalia while hitting your partner with a large brick.

For example

Warmachine673 gave his mate a sloppy gobble knocker while he played his video games.
Warmachine673 gave his mate a sloppy gobble knocker while he played his video games.
Gobble knocker by DOPE POPE April 3, 2017

knockeroonies 

A pair of human female breasts, that are so large, impressive, and aesthetically pleasing, that it is only appropriate to call them by a four-syllable word.
Yvette's head games drive me totally insane, but I am powerless to resist her amazing knockeroonies.
knockeroonies by Mistah Know-it-all October 28, 2018
More from Urban Dictionary

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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