Get a full outer shell

To be said to someone after they do something dumb; implying that they need a valence electron to become stable and not be an idiot.

Cashier: Enjoy your food
Matt: You too
Alex: get a full outer shell

by TheBenniestOfShapiros May 15, 2019

skating on shell casings

Slang for being extremely busy, having been extremely busy or both.

Busy person (picking up phone): "What !?! This had better be good! I am skating on shell casings here, you know!"

Caller: "The boss wants the names of who we are sending to the hazardous materials training."

Busy Person: "Yeah, I'll get right on that"

by johnny pubestache January 21, 2011

Egg Shell Selfie

A selfie that all white girls take where you can barely see each girls forehead

Yessss Becky get in my egg shell selfie, you go girl.

by Egg shell September 4, 2019

Turtle Shell

When it’s cold or not and your dick decides to back inside yourself like a turtles head goes back in it’s shell.

Gawd damn! My dick gawn back in his turtle shell! What’s wrong lil guy? Ya cold? Come on out, I’ll keep ya warm in my hand.

by Dr.EvilRaj July 27, 2018

flying shell

When a Raven swoops in and grabs a turtle. Then the Raven takes the turtle back to it's nest and uses the turtle as a sex slave.

I just pulled a flying shell on another one.

by GoldenGamer6 November 19, 2017

Mr. Shell

god

:0 IT'S MR. SHELL

by Cheesus69420 May 3, 2023

Shell-puppy

Is a pet turtle that one treats like a puppy or it acts as a puppy on its own.

Hey Carol, look at my new shell-puppy isnt he cute.

by SavageRedQueen81669 February 18, 2021