in the red 

business term meaning having a negative amount of money

"James is horrible at selling things. If everyone were like him we'd be in the red in no time."

in the red by Jarik March 31, 2005

in the red 

A state in which the battery power in one's iPhone dips to 20% or less, causing the battery icon in the top right corner to change color from green to red.

I'd better charge my phone. I've been playing Tetris for hours and now it's in the red!

in the red by OneMileFromGlory April 26, 2014

in the red 

having an easily aroused and uncontrollable boner. usually happens a lot when you're adolescent teenager. all men can have it though at anytime.

also see N.R.B.

Guy #1: Why are you covering your crouch with your notebook?
Guy #2: Because man, I'm still in the red!

Guy #1: Aww man, Jen's coming down the hall.
Guy #2: Ah, shit! I'm gonna be in the red til the end of school!

in the red by thephantomplatypus September 24, 2009

in the red 

Mad, pissed off, so furious your face turns red.

He slammed the change down on the counter and I was in the red.

in the red by Sherlee June 27, 2007

In the red 

In music, when you have your amps turned up to 11 and the music is extremely loud and ear piercing. This is usually done deliberately.

Manowar want to be the loudest band so the deliberately play with the volume in the red.

In the red by nacht_for_haters October 13, 2018

in the red 

having sex with a woman while on her period

I was in the red last night

in the red by K Siler June 27, 2005

in the red zone 

being unable to have sexual intercourse due to menstruation; the onset of menstrual bleeding

Everytime I want some from my wife, she's always in the red zone.

in the red zone by Picklez July 21, 2006