open-eye 

a state of wakefulness; being awake or sleepless.

As I was under stress, I had to while away the whole night in open-eye.

open-eye by uttam maharjan June 29, 2011

Open book test 

if its open book, then your friends can be used to gain your information from

You know its an open book test raymond lets do this!

Open book test by ahmedisleosometimeslolol February 2, 2021

Open Heart Sergery 

A large, Loose, Vagina

She has been fucked so much it looks like she had open heart sergery.

She's so loose, she must have had open heart sergery, gross.

Open Heart Sergery by junner December 3, 2003

open neck 

This is where you discover some one with their chin up and you proceed with a karate chop to the neck while shout "open neck!" The person doesn't have to be with their chin up, they just need chin high enough to fit a flat hand in. You cannot "open neck" some one if they know you are going to do it or if they have their chin down a considerable amount. The whole idea about the "open neck" is supposed to be a suprise with a choke. Be careful if you decide to play this game, because it can keep going on for years to come.

"Hey, look at Shaun sitting there staring at the computer." *Nick creeps slowly behind Shaun, then moves to the side of him...*
"Open Neck!!!"
*BAM*
Shaun: "Uuuugh, you smashed my throat"

open neck by Nicholas Q August 27, 2006

Open Ass 

As a police office is patting down a suspect, as he goes down the leg he get a whiff of nasty, sweaty, funky ass.

Man that MF'er had some major open ass.

Open Ass by Mojo Man wolf October 31, 2006

open window 

Window that is open

Man, look at this open window.

open window by A Moody Booty January 17, 2014

Open Season 

When alll the girls you and your friends have a sexual intrest in and or dating become open for any random jobber to bone.

Dude, since its fuckin open season, I went and fucked the fuckin roast beef out of evan's women.

Open Season by Dan Maslanka May 13, 2005