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10.
Bloodshot eyes as a result of smoking weed. Something to do with THC doing something with your blood vessels in your eyes or something, I can't remember properly because I was stoned when I read it. But yeah, when you smoke weed your eyes normally go red, this is red eye.
DUUUUDE! YOU'VE GOT EPIC RED EYE!!!

That bitch got stoned last night, you should have seen his red eye! He was like Darth Maul or some sh*t!
by Captain Hempstein January 03, 2011
 
1.
1. A late night airline filght.
2. A type of whiskey consumed in the old west.
3. Your asshole.
1. "I caught the red eye from Detroit."
2. "Bartender, a shot of red eye."
3. "Put your cheeks together. I can see your red eye."
by creedmoor October 11, 2004
 
2.
An late night or over night flight.
When asked how her trip was, Kelly responded with "Terrible. My last flight was a redeye and I'm exhausted."
by Kat December 11, 2003
 
3.
The fiery, burning sensation in the anus during defecation due to the consumption of extraordinarily spicy cuisine.
While he somehow managed to avoid throwing up the shot of Vodka with a drop of Mad Dog Inferno hot sauce, the following morning he suffered a blistering bout of red eye.
by Tom Swift July 14, 2004
 
4.
what you get after you blaze
"why do you have red eyes?"
"I just blazed dude"
"Word"
by StayHiigh420 August 11, 2008
 
5.
The after-effect of ejaculating on a woman's eyes.(Intentional or otherwise)
Dave B gave that bitch the red eyes last night because she was a starfish and just laid in bed.
by \dk August 24, 2008
 
6.
The middle of someone's butthole.

Term created by the University of Illinois

Source: University of Illinois Graduate
Savanna just gave you the Red Eye!
by bget May 17, 2014
 
7.
When you take a big shit and your butthole hurts and is all red
"Last night after eating mexican food i took the nastiest shit and my butthole became a Red eye."
by Mdawgy June 16, 2008