Frightened Turtle Effect 

Another term for shrinkage. When the male genetalia becomes withered from immersion in a cold fluid.

Dude this water is frezzing
I know i've got the frightened turtle effect over here.

Frightened Turtle Effect by Blaker April 27, 2006

frightened goldfish

A penis that fails to become erect prior to intercourse

Tom was ready to go at it, but Bob was struck with a bad case of the frightened goldfish.

frightened goldfish by shrubbage December 31, 2008

Frightened Turtle 

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*

Frightened Turtle by Scooter McFadden April 19, 2004

frightened starfish 

Rigid position adopted by a female virgin in preparation for first coital experience.

Characterised by slightly spread arms and legs and absolutely no movement whatsoever before, during or after coitus.

"Yeah, it was her first time, so she did the frightened starfish, but after a couple of times she was really cock hungry"

frightened starfish by stevobower February 21, 2005

Frightened Rabbit 

You are trying to shit on a girl during sex, but you are constipated. You push as hard as you can until the shit is halfway out, but as soon as you relax your stomach muscles, the shit goes all the way back in. (When you flex your stomach muscles your cock flares up. But when you relax it goes down. The cock represents a hunting snake, and the shit represents a frightened rabbit retreating back into its hole)

Dood! Last night I was trying to shit on my girl but i had a frightened rabbit. Fukin A!!!

Frightened Rabbit by MMMofVVV March 30, 2008

The Frightened Donkey 

A non-violent alternative to the fabled "Donkey Punch."
This occurs when a man is performing doggy-style sex on a woman (or man), meanwhile a third party has been recruited to hide in a closet, or similar hidden space close by, with a scary mask. At the point of climax, the third party emerges screaming, thus scaring the woman/man causing their sphincter to contract.

"My girlfriend loves dirty sex but is against domestic violence, so for her birthday me and my friend gave her "The Frightened Donkey" and she loved it!"

The Frightened Donkey by Rygar James November 2, 2006

Frighten turtle syndrome 

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

That water was damn cold I now have Frighten turtle syndrome (FTS)

Frighten turtle syndrome by Wooha5062 April 26, 2010