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 drainedmy 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.
By Zara
Peek-a-boo
A man bends a woman over and does her from behind, then pulls out and spits on her back, making her think that he has discharged his load. As the woman turns around to congratulate her male, he skeets his man juice onto her face
When just the tip of your man's petite junk happens to make a brief appearance out of the bottom of his inappropriately short shorts. See the pinky. Antonym: the brain.
After a long night of drinking a girl and guy go home together and when trying to penetrate he gets whiskey dick and poop, the floppy dick pops out and the woman is most likely upset.