turtleback 

When a man orgasms on a female's back, then gets her to fall asleep on her back. While asleep, the semen adheres to the woman's back and to the bed, such that when she awakens and attempts to get up, she is unable, which leaves her to flail her arms and legs like an overturned turtle.

I turtlebacked that ho' and when she woke up was stuck frontside up.

turtleback by G-lenn March 7, 2009

turtleback bag 

When a child's bookbag is so full that his\her bag ends up acting like a turtle's shell causing slouching and slow movement.

Billy Jean:Boy Diana sure has a full backpack
Smooth criminal:Yea poor Diana has a turtleback bag

turtleback bag by LEOGEO October 16, 2009

Turtleneck Butt 

Something you Googled after watching Big Mouth Season 4 Episode 3

Andrew: "According to WebMD I have turtleneck butt.

Turtleneck Butt by This is what you get December 17, 2020

turtleneck butt 

When you go a month without pooping, and the turd is so huge it stretches you hole so far that afterwards it hangs down loose like the collar of a turtleneck sweater.

I went to camp and couldn't poop for a month. When i finally did, it stretched my asshole out so badly now I've got turtleneck butt.

turtleneck butt by TenhoSede December 7, 2020

Turtleneck Sweater 

(n.) A strategically designed sweater that has a piece of fabric at the top which hugs fabric completely around the neck. Mostly worn more recently by snobby artists (usually accompanied by a beret also black) or mom's over 35. However, the sweater originated to solve an age old problem of hiding hickeys. The neck is one of the most common places for visible hickeys to appear after a passionate make out session. The next day when you have to have dinner with you parents (or maybe even grandparents!) the hickey will make them think you are some kind of sex fiend. A fashion designer had this problem and after realizing all of their scarves were dirty (don't ask, that is more sex fiend stuff) quickly sewed extra fabric on top of an old sweater to completely conceal around the neck and thus the hickeys. Now men and women can wear hickeys around their families and everyone will think they just have no fashion sense.

Girl: "Tomorrow I have to spend Christmas visiting relatives."

Guy: "So no Chistmas Eve necking then?"

Girl: "Oh we totally can neck all night, I have an ugly Turtleneck Sweater I can wear!"

Turtleneck Sweater by Kangarilla September 30, 2014

Swiss Turtleneck 

The act of a man's head being placed between two sets of large breasts so that the breasts form a "turtleneck" around the man's neck.

Brandon: "Dude, i got the two Emily's to give me a Swiss Turtleneck!"

Blake: "Nice!"

Swiss Turtleneck by Big Choctaw July 9, 2010

one-eyed night-crawler w/ turtleneck 

Covert expression for the male (possibly uncircumcised) sexual tool.
see: one eyed trouser trout

His best catches were when he used his one-eyed night-crawler-with-a-turtleneck as bait.

one-eyed night-crawler w/ turtleneck by sonni hopkins September 7, 2005