on red 

When your friend doesn't reply. It comes from SnapChat streaks and the red box next to the name.

I texted Sheila, but she left me on red, so I don't know if she's coming.

on red by RomoLoop December 20, 2017

Left on Red 

When somebody doesn’t open a message from you and you’re left wondering whether they saw it or ignored it. By ignoring you for more important business, or not caring enough, their notification is left alone, henceforth the app has a new “red” symbol

“Caden can I talk to you man? I’ve been having it rough lately”
“yeah bro what’s up?”
“So recently you know how I’ve been struggling to keep up with my assignments while also dealing with other shit?”
...
>two days pass
...
‘Did I really just get left on red?’
...
>and that was the last message in two months

Left on Red by AstroScraps June 9, 2019

Red-on-red crime 

Sexual acts between ginger folk

Dude, I don't knock on redheads. That would be red-on-red crime. Too weird.
As spoken by a ginger male.

Red-on-red crime by Bobo daddy January 1, 2012

Right Around on Red

Utilizing the center or even leftmost lane to execute a right on red when the rightmost lane is occupied by a driver intending on going straight (or too timid to execute a legal right on red.)

Mike - "Look at that moron in the right lane. Two perfectly open lanes to choose from and he is camping out in our way."

Me - "No problemo Mike, I'll just use this here center land and go right around him - the Right Around on Red."

Mike - "You are Batman."

Right Around on Red by therealbluejuice April 7, 2011

Clam Diggin on Red Tide 

Fisting a woman who is having her period

Theres nothin more fun than clam diggin on red tide.

Clam Diggin on Red Tide by -{kIng}of[the]jewZ= July 25, 2011

left on red 

when you text someone and then ,then they don't text you back when they've obviously seen the text.

i texted her to days ago and she always checks her phone
" then you got left on red. move on."

left on red by maekaelaygi rl April 4, 2020

cummin through on red 

cummin through on red, is when you have sex with a woman who's on her period and also means as you know running a red traffic light!

'I'm on my period' don't worry I'm still cummin through on red!

cummin through on red by kermit999 June 16, 2011