Turtle shell 

When you cum so hard your abdominal muscles contract involuntary causing you to hunch forward making your back curvy like a turtle shell

Person 1: Dude i came so hard last night! I turtle shelled for atleast 20 seconds.
Person 2: Nice bro. *high fives*

Turtle shell by Thatguywhocamehard September 28, 2017

pink shell 

Slang for Ecstasy. Usually a small pink pill.

Causes feelings of extreme sensuality.

Wanna split a pink shell with me?

pink shell by Crackwhoremagazine July 17, 2012

dan shell 

A kid, usually from Mississippi, who has puubes on his head and looks like he’s from Turkmenistan. He is attracted to bigger women who have a bigger dick than he does.

Look it’s Dan Shell!! He’s a faggot.

dan shell by nosac69 February 16, 2019

Crushing of the Shell 

A 'Coming of Age' ceremony whereby the participant, on the eve of their 21st birthday, willing engages in the physical destruction or 'crushing' of a sea shell with the aid of a consecrated sledgehammer. Though the ceremony is believed to have ancient origins, it is widely regarded today as milestone or transition in the participant's life as they cease their old ways and embrace a new life of profound knowledge and wisdom.

At what time will your "Crushing of the Shell" be starting?

Crushing of the Shell by LindsayLohan49 August 27, 2013

mary in a taco shell

When a religious girl engages in sexual activity with other girls, namely in the effort to avoid the sin of vaginal penetration.

She's Mary in a Taco Shell, bro. She keep it hid.

mary in a taco shell by Prancingking January 7, 2015

Crab Shell 

Verb to describes what ones penis looks like after it aquires herpees

OH SHIT MAN YOU GOT A FUCKING CRAB SHELL!!!! get herpicin HQ

Crab Shell by CACK SHIT January 10, 2004

clam shell

(v.) The female equivalent of a cock block, i.e. when a female prevents you from scoring sexually.

When Amanda and I got back to her place after the party, her roommate totally clam shelled me by suggesting we all watch the "Glee" marathon on TV.

clam shell by segway56 October 9, 2011