shell tops 

see shell toes
named for the normally different texture of the material that covers the toes.

example: On Converse Chuck Taylors that are black, the "shell" part is usually white or vice versa

shell tops by B-Kamby June 30, 2005

Shell Shocked 

Shell Shocked: When a woman parties so hard the night before and ends up in the emergency room the next day with terrible genital pains only to find a dead turtle in her vagina.

Wow girl! I was at a party last night and had way to much to drink and woke up shell shocked!

Shell Shocked by ICE BEARD THE PIRATE October 2, 2018

Shell Shock 

A condition that occurs only in high school guidance counselors. Those affected will spend hours at grocery stores running tests on eggs looking for the perfect carton. They usually become angry when people suggest they mix and match the eggs.

Dante was about to call the cops on a Shell Shocked counselor in the Quick Stop, but a woman told him not to worry about it, because they always pay for what they break and clean up after themselves

Shell Shock by KossB May 11, 2006

Shell Knocking 

When your girlfriend isn't around, so you decide to have sex with a turtle.

"Did you hear about Dave? He went Shell Knocking since Cathy's out of town!"

Shell Knocking by TRSnakeEyes March 1, 2015

shell shield 

When you get a triple green shell or red shell in Mario Kart and keep it as a shield to avoid other shells. Unfortunately, shell shields are busted by the 'naners.

Shells are used to smack people around.

I pulled out a shell shield. Wario, Ludwig, and Rosalina all went down. Then I just sped ahead to first.

shell shield by A Guy Harmonizer (FIGHT ME) February 25, 2017

shell gliding 

When two lesbians clam bump to the point where the vaginal lips hang down dripping wet and drags across the floor leaveing a slippery trail

I was shell gliding after my first lesbian experience

shell gliding by camping buddy June 11, 2017

Shell shocked 

When a cold gust of wind hits a man and his penis retreats back into its body, such as a turtle when it gets scared.

“So did you go all the way with Sally?”
“Nah I got shell shocked before I walked in”.

Shell shocked by Lil Lep January 25, 2018