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."
by Jarik April 1, 2005
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!
by thephantomplatypus September 24, 2009
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!
by OneMileFromGlory April 27, 2014
Mad, pissed off, so furious your face turns red.
He slammed the change down on the counter and I was in the red.
by Sherlee June 5, 2007
having sex with a woman while on her period
I was in the red last night
by K Siler June 17, 2005
A god-loathing, degenerate, abominable, scum, low-life, lying, reality-twisting, tyrannical, hypocritical, censoring, unsaveable, contradictory, truth-suppressing, genocidal, libeling, anti-good, cancerlike, scoundrel, bolshevistic, demonic, heinous, closed-minded, selective-hearing, unethical, cheating, scum-adoring, evil-worshipping, sin-loving, witchlike, good-hating, truth-fearing, evil, hedonistic, loathsome, child-predator, living-disgrace, living-abomination, pedophilic, motormouthed, psycho-minded, retched, thief, scam-artist, horrified-of-good, pathological-lying, toxic, sinful, child-corrupting, self-righteous, child-abusing, holier-than-thou-status-claimer, ironic, slogan-barking, over-educated-moron, anti-white-bigot, anti-male-sexist, bitchy, cis-genderphobic, anti-masculine, double-standardised, body-mutilating, gender-destroying, nature-hating, moral-loathing, limitless-sinning, blame-shifting, no-good, regressive-claiming-status-of-“progressive”, ugly-minded, multi-factorially-regressive, drug-infected, sickness-in-human-form, aids-diseased, class-envying, class-dividing, class-hate-mongering, political-correctness-enforcing, viciously-evil, class-warfare-promoting, decedent, sin-promoting, beyond-worthless, unjust, poisonous-lie-repeating, justice-inverting, whore-encouraging, no-good-outcome, devil’s-associate, decency-destroying, unfixable, complete-and-pure-enemy-of-god-and-any-and-all-good, mouth-breathing, primitive, violence-using-when-unable-to-lie,
humanity-enslaving, psychopathic, humanity-brainwashing, humanity-degenerating, humanity-scumming, humanity-evilizing, humanity-dumbing, criminal, back-stabbing, deceiving, remorseless-evil-doing, dull, demon-as-saint, thieving, lowest-of-the-low, pure-evil, dishonorable, disgraceful, honorless, treacherous, ratlike, perverse, snakelike, living-lie, satan-representing, willfully-ignorant, con-man/woman, degeneracy-promoting, trigger-happy, power-only-for-me-and-never-for-thee, living-and-complete-list-of-all-sins-recorded, value-seer-in-evil-but-valueless-seer-in-good, profane, power-dependant-scoundrel, disgusting, poisonous-toxic-waste, seemingly-unlimited-list-of-words/terms-needed-and-most-missing-in-the-English-Dictionary-required-in-order-to-be-defined, piece of rotten, pure-evil, sub-human garbage, who deserves absolutely everything and anything. Including the worst death, and must for plain justice, remain and rot in hell forever, for their defiant embodiment and lifelong worship/following of pure-evil which they dishonesty and abominably call their “moral-duty-of-an-ideology”. If you buy one or more of their pure-evil lies for a colossal unpayable price, you will later be left sorry on a level you will never be able to comprehend, or die sooner than the moment you understand that.

It’s a shame Urban Dictionary has a 1500 letter limit in each of the two boxes limiting how much of the seemingly unlimited words/terms I can put to define a red.