Unwanted fox 

used in social situations, a person creates a fox "shadow puppet" using the hand as a subtle code to tell other people in the group that a newcomer to the group (for example a random guy joining a group of girls) is unwanted. It is always used subtly i.e. under the table or when the unwanted person is looking away

Those group of girls weren't interested, I caught them using the unwanted fox.

Unwanted fox by mowehdg August 19, 2011

unwanted all-nighter 

When you are legitimately trying to get a full night of sleep but you are unable to fall asleep, so you end up staying up all night. May be by choice after waiting too long to get to sleep, or by trying all night to get to sleep and not succeeding. Usually catastrophic when you have an important event or task the following day.

"Dude, I am so tired; I pulled an unwanted All-Nighter last night."

unwanted all-nighter by Nas2play February 2, 2018

unwanted bell end 

A very special type of person that makes you want to kill them on sight, and only they can do this. Most of the time they are unwashed, greasy, disgusting. Common traits among these people are being racist, homophobic, sexist and just plain rude and annoying.

Alex is such an unwanted Bell End
Donald Trump is an unwanted bell end

unwanted bell end by Heisenhoven May 6, 2018

Unwanted Harem 

Not to be confused with Harem Genre, a genre of Japanese media that sometimes heavily relies on this trope. A common reaction from the man when a Harem plot begins and women start fighting for his attention. He might either think like a Celibate Hero, that the gratuitous quantity of boobs he is forced to see every day are just a bother, (comically missing the point that he is in an enviable situation) or see them as an obstacle between him and the girl he truly likes, or he may just find them annoying for one reason or another. A more likely reason, plot-wise, is the fact that the male lead cannot reciprocate all the girls' feelings without seeming to the audience to be cruel, manipulative, and misleading to the girls. So the far easier solution is to make him oblivious to their affection.

"Well, I'm running down the road trying to loosen my load,
I've got seven women on my mind.
Four that wanna own me, two who wanna stone me,
One says she's a friend of mine."
-Eagles, "Take It Easy"
George:... Well, that's an Unwanted Harem if I've ever seen one.

Unwanted Harem by Happy tree times March 30, 2021

Unwanted Monthly Subscription to the Waterfalls of Hell 

another code name for periods.

"Oh my god I am literally having the worst cramp of my life right now"
"Is it the unwanted monthly subscription to the waterfalls of hell again?"

Unwanted Monthly Subscription to the Waterfalls of Hell by Ilikeoreosandpussyyyy May 11, 2022

Unwanted sweetcorn 

The act of sodomy that ends with an unwanted surprise

John, I pulled out and found unwanted sweetcorn on my helmet!

Unwanted sweetcorn by The Hoff 75 September 14, 2022

An Unwanted

An Unwanted is a child who never gets adopted and has to leave the orphanage at 18 with no biological parent wanting them, and no desperate person unable to birth a child of their own wanting them either.

Unlike a homeless, an unwanted seeks love and affection, rather than spare change, yet both live off the land (streets in a city centre) and are without a home.... or love.

Jamie - 'Why is Jason Leaving the Orphanage?'

Mike - 'He's an unwanted, so now he's 18 he has to leave the orphanage on his own and live of the land.'
Jamie - 'Golly! I knew he wasn't loved by anyone but i never knew he was an unwanted!'

An Unwanted by TWC.TV March 16, 2017