The really annoying things in mario kart that fuck you up really bad. They come in three different types:green, red(or brown), or blue. The green ones aren't so bad they just fling around stupidly. The brown ones, you should watch out for.
They seek the person in front of you and fuck them up. The blue ones automattically go to the player in 1st place.
"I was in first place, then fuckin yoshi threw a red turtleshell at me and I got fourth."
An act where a person pretends to be occupied on their cell phone to ignore or avoid social situations or other real world happenings.
person #1: I'm gonna go talk to that girl over there.
person #2: Oh no dude, she saw you coming and totally turtlecelled.
person #1: What's up with the people at this party? They're all turtlecelling!
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 Shellyour mom this weekend!"