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.
by LindsayLohan49 July 19, 2013
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.
by segway56 May 27, 2011
by CACK SHIT January 11, 2004
What happens when you hold your poop for too long. When you finally sit down on the toilet, you let loose only to realize that it may have been on the verge of popping out, and that you probably had less time to wait than you thought.
John: "Bro, Sidney was over for 6 hours last night and I had to shit so bad!"
Steve: "Damn, son. Did you drop a deuce with her at your place?"
John: "No, but I was turtle shelling it like a mothafucka. Almost shat everywhere."
Steve: "Damn, son. Did you drop a deuce with her at your place?"
John: "No, but I was turtle shelling it like a mothafucka. Almost shat everywhere."
by 2toedsloth December 16, 2011
by Cosand October 02, 2006
by Scott Hillegass April 27, 2004
by Machine a.k.a. party boy February 17, 2005