What's on your mug?

When you're doing 69 but eating each others asses.

Woah, they're totally turtlenecking right now!

By mrbadboi420

When a penis goes down inside itself or gets real small.

You’re penis is turtlenecking so much, I can’t grab ahold of it.

By Noname218

When a dude who’s circumcised and a dude who’s not circumcised touch penises and the dude who’s not circumcised pulls his foreskin around the other dude’s penis.

Yo, Dave and I found this uncirced bro last night and got to turtlenecking.

By Itmeeeeeee

When you extend your neck to show off your adams apple, or appear taller or larger, or intimidate people.

Man: i am going to intimidate that kid for talking shit about me. Man: *is turtlenecking* Kid: i am scared!

By messedup77892

The act of inserting objects into the foreskin of a penis and rolling the foreskin above the tip, simulating a turtle hiding its head in its shell. Typically for safe storage or to hide objects from others.

"The cops didnt find my weed, thank god I was turtlenecking"

By ShootFastEatAss69