tranny scanner 

Much like Gaydar, tranny scanner is a trans persons ability to detect other trans people
A cis persons ability to detect trans people is more referred to as Transgendar

Everett - "do you think that Devon is trans?"
Avery - "No doubt, my tranny scanner went off just like before Elliot Page came out"

tranny scanner by mushroom_on_jupiter December 19, 2021

banner scanner 

A person who reads the text banner, without opening up the chat, in order to preview what was typed and not have to leave somebody on "read".

I sent a text to that girl, but it's out undelivered. I think she is a banner scanner, and doesn't want to let me know that she has read my text.

banner scanner by boogiek March 22, 2023

flatbed scanner 

Electronic device that looks like a small suitcase. Lay paper of a book on it, and it works like a photocopier, delivering an electronic version of the document as an image-file to your personal computer.

"I used my flatbed scanner to get my cat onto Cat Scan."

flatbed scanner by Norman July 24, 2004

Nappy Scanner 

Someone who looks into used nappies for turds to eat. Also an insult to people to tell them how much of a scumbag they are

Dude, look at that guy he's Nappy Scanning in that bin over there....
Piss of you fuckin Nappy Scanner....

Nappy Scanner by Smelly320 May 6, 2009

Side Scanner 

A person who has an eye that looks away from the direction that the other eye is looking. For example, a person's left eye is looking forward while the right eye is looking to the right. Some people also have the ability to change which eye is the side scanner. Not to be confused with someone who is crosseyed or middle scanner.

The guy at the drive thru window was a side scanner. He was looking at us and the car behind us...at the same time!

Side Scanner by JibSS October 1, 2010

Milf Scanner

People who likes to watch milfs; like there face, breast, butt etc.

"He's not afraid to check out the hot milfs there, he's a total milf scanner".

Milf Scanner by Ilovemilfsonly777 October 28, 2023

Scunnert 

General state of boredom and fed up ness. Used when you really cannot be bothered, also when you have just accomplished a big task that has knackered you. Used mainly in the north east of Scotland

"I'm fair scunnert the day"

Scunnert by Sharyn April 3, 2007