When you masterbate so much you develop a calis on the head of your penis and then don't shower for a while and go and bone.
Guy 1: "Dude i've been jerking it so much this week"
Guy 2: "Id didn't need to know that but why?"
Guy 1: "So I can Turtle Shell your mom this weekend!"
Guy 2: "Id didn't need to know that but why?"
Guy 1: "So I can Turtle Shell your mom this weekend!"
by Stufma Cokiner March 13, 2010
the muscles on a toned or muscular persons body where their abnominals meet the top of their thighs, creating the look of a turtle shell
by ashleyshubes May 02, 2009
When your balls shrivel up into your abdomen, leaving the scrotum looking like a ridge-textured turtle shell. This is commonly caused by either exposure to cold or in those situations that give you the willies, much like goosebumps.
by Doo! May 03, 2016
A turtle shell is when your dick is so shriveled and soft that it is practically retracting back into you, similar to how a turtle goes into its shell. A turtle shell usually occurs after you have just ejaculated or after you get out of water.
by Dickle Pickle102 June 16, 2017
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*
Person 2: Nice bro. *high fives*
by Thatguywhocamehard September 28, 2017
V. The act of taking someones backback when they're not looking, taking everything out of the main pocket, turning the bag inside out, placing everything back in, zipping it up so as the zippers are on the inside making it difficult to open back up, and placing it back next to the person before they find out what you've been doing.
Dude 1: Dude Joe's not looking, grab his bag.
Dude 2: I got it.
Dude 1: Give it here.
Dude 2: What are you doing with it?
Dude 1: Im turtle shelling it.
Dude 2: Nice, go go go.
Dude 2: I got it.
Dude 1: Give it here.
Dude 2: What are you doing with it?
Dude 1: Im turtle shelling it.
Dude 2: Nice, go go go.
by Dickfacelardass101 March 09, 2009
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