Spawn Peek

In the game Rainbow Six Siege a player (defender) partially breaks open a window or door to get a cheap shot at the enemies. Usually these people are Jäger or Bandt but all players can do this

Attacker: THE FUCKING LITTLE SPAWN PEEKING JÄGER IS SITTING IN THE WINDOW WAITING FOR US TO FEED HIM HIS LITTLE ACE
Jäger: lol rekt ez

Spawn Peek by end me pls August 19, 2017

Door Peek 

the look you give over your shoulder when entering or exiting a building to see if there's somebody coming you need to hold the door open for

Person 1: Dude, why are you holding the door open for that woman way over there.

Person 2: I pulled a door peek and we made eye contact.

Door Peek by Senenmut256 February 25, 2011

Ferrari Peek 

In the CSGO community, the term "Ferrari Peek" has been created to indicate a type of kill/peek.

A "Ferrari Peek" is when someone swings you around a corner and kills you before you even get a chance to react.
Ferrari Peeks can sometimes happen just out of luck or if you are that good, just raw skill.

Meaning - To get absolutely fucked around a corner and contemplate your reasoning for playing this shit game.

"This cheating cunt just Ferrari Peeked me upper B."
or
"I literally just raped this guy's whole family with a Ferrari Peek."

Ferrari Peek by Hunter4k February 28, 2020

Playing Peek-a-boo 

Similar to prairie dogging, when one has waited to shit so long that the turd starts to come out a bit.

Dude, lets's find a restroom quick. I'm playing peek-a-boo over here.

Playing Peek-a-boo by SMUsucks June 5, 2009

peek-a-pee 

When a man using a urinal adjacent to yours, tries to watch you pee.

Damn, the guy next to me was trying to do a peek-a-pee. I should have used one of the stalls.

peek-a-pee by Extra Mayo January 26, 2013

peek-a-poo 

when a person walks into a public restroom looking for an empty stall; they peer through the crack of the stall looking for and empty toilet. The awkward embarrassing eye contact that the person inside and outside the stall make with each other is called peek-a-poo.

I was kind of embarrassed when I got peek-a-pood by a stranger in the public bathroom earlier today.

peek-a-poo by jc bro May 7, 2011

Peek-a-poop 

A peek-A-poop, a poop that starts to come out but then quickly retracts leaving you disappointed.

"Dude, I had three peek-A-poops today and I'm starting to get mad."

Peek-a-poop by PikachuIseeYou June 14, 2013