While having doggy-style sex in a dark room, you switch with a friend without her knowing and then exit room and wave to her from her window
Peek-a-Boo i see you
To surprise someone.
Example: Peekaboo, I'm not a virgin anymore! :D
when u need to take a crap and it goes out and in of ur a-hole
pull the car over my shit's playin peek a boo
with me again
When you are almost done crapping but there is a small, dense turd left stuck halfway out of your rectum. As you push, it slides in and out but never fully detaches, making a "peekaboo" motion.
Damn. I wish I had some paper towels, this toilet paper will NOT handle this Peekaboo.
When the penis slips out of the middle hole in a pair of underwear boxers, either on purpose or accident; most likely when erect or after masturbation
1. When I got tissue after I drained my sack, I put my boxers on and my penis pulled a peek-a-boo.
2. I pulled my boxers on after I took a shit and my penis decided to play peek-a-boo.
When you ride a lady doggy-style, pull out and spit on her back (to make it seem like ejaculation) then when she turns around and smiles, spray her in the face wis da peen.
It was funny to see the look on her face when I peek-a-booed her.
When you are about to take a shit, it makes air contact and is just about to drop out, but then it gets scared and goes back into the hole.
Dude, after eating 4 bowls of porridge, I think I might be able to finally get rid of this peek-a-boo that has been trying to come out of me for days.