A large chunk of fat or skin that covers someone butt, comparable to a sea turtles shell.
God damnit she has a sea turtle ass
When she has her partner place his flacid penis that resembles a sea turtle head in her mouth and allows the turtle (penis to get erect) inside.
I am bored come sea turtle me.
When one dude is on another dudes shoulders and the guy on top has "turtle necked" (ground his dick on) the back of standing guys neck.
While they were trying to watch the tiesto concert, Tom turtle necked John.
when someone is hit so hard in the head their neck is extended a little.
asshole Eian was giving me shit at that party so i turtle necked that fucker
To sneak up behind someone wearing a hoodie, then inverting the hood on said hoodie, thus making it appear as though the person now has a turtle shell on their back.
This can then be accompanied with shouts of 'TURTLED! TURTLED!' at the victim while simulating a turtle shell on your own back.
*sneaks up behind and flips hood*
Leah: HAH TURTLED
Talon: what does that mean?
Leah: Turtling is when I flipped your hood and gave you a turtle shell!
(adj.) The state of having one's penis pull up into the body and disappear beyond the foreskin, like a turtle's head. More common in overweight men.
Look at that big fat guy over there, he's totally turtling!