When a poop log rears it's brown head out for a peek, only to retreat to it's rightful home at the moment, the ass.
Man! I almost messed my trousers, thankfully it was only a frightened turtle, so no soilage! *high five*
by Scooter McFadden April 19, 2004
When you're so cold, that your penis tries to suck back into your body like a frightened turtle into it's shell.
"Dude, you should know better than to go skinny-dipping on the first date. You never show the frightened turtle to a chick who hasn't already seen your meat."
by Mr. BRW February 07, 2008
The act of the male penis retreating back into the pelvis area causing it to look like the head a Frighten turtle Also known as FTS
by Wooha5062 April 26, 2010
Another term for shrinkage. When the male genetalia becomes withered from immersion in a cold fluid.
by Blaker April 07, 2006