A tiny vagina on a woman that has no visible lips. It appears to be a just a small slit and is often difficult to see. Hence the term "peek a boo where are you?"
Mary had the smallest peek a boo I've ever seen. It was so small I had to feel for it because it was difficult to see with the naked eye.
by Flojos December 30, 2010
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
"i thought he had finished, but the bastard tricked me and gave me a peek-a-boo as soon as i turned around"
by nickt April 7, 2007
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.
by John Masteurre-Baitor December 21, 2008
When going to use the restroom in a public facility, looking in different stalls (peek) to make sure that the previous occupant has flushed the toilet (boo).
by emmsers13 September 11, 2007
A term for a girl that shows off her thong. Either by wearing her pants or jeans low so the thong hangs out. Or wears a see through outfit and you can see her thong.
by Big G 31 April 27, 2008
Similar to prairie dogging, when one has waited to shit so long that the turd starts to come out a bit.
by SMUsucks June 5, 2009
when you take a duke in a port-a-potty and your turd is so long that it doesn't splash to the bottom but sort of "stands up" out of the pool of blue chemistry at the bottom of the john.
Man after eating all those burgers & brats while tailgating, I left a helluva peek-a-boo blue at the port-a-potty.
by MikeInWoodstock November 6, 2007