peekaboo-abs 

an abdominal condition in which one's abs can only be seen if in the flexed position or state, then disappear when relaxed.

Man, I think I need to start reducing my beer intake, or switch over to the light calorie crap; my six pack is now their substandard version of peekaboo-abs!

peekaboo-abs by YumiSpewns October 14, 2011

peekaboobs 

having a nip slip. wardrobe malfunction.

DAMN! her shirt had a peekaboobs!

peekaboobs by pennguyen5 August 8, 2011

Peekaboobs 

When a girl in a chat uploads a boob pic, then later deletes it.

A. "Dude, what happened to that boob pic Sara uploaded? I need it for... reasons."
B. "It's gone, looks like."
A. "Haha, peekaboobs."

Peekaboobs by CardenB666 June 9, 2020

Peekaboobs 

When she has surprising large breasticles and you weren't expecting it when she revealed them.

Mindy, took off her shirt to reveal her rather larger sweater puppets. I thought she was a b cup. She had them D cup peekaboobs.

Peekaboobs by DirtyBradnSteve September 1, 2023