Shellshocker 

A Nickname Given to a Blastoise In Pokemon the first Movie

I Choose You, Shellshocker! Finish it off with a Hydro Pump now!

Shellshocker by ANIMAL! June 18, 2009

Shellshocked 

An individual that may be traumatized by a war, commonly the world wars but perhaps the cold or Vietnamese war, the effects are kinda like Parkinson's disease but much more powerful, the person struggles to move but can, and cannot sit still, the person will often struggle to sleep because they are so traumitized.

My Great grandfather survived the war, but he came home shellshocked

Shellshocked by Folix August 5, 2016

Shellshock 

A condition usually found in Soldiers, where a traumatic experience forces the person into a state of shock, such as being in the proximity of an exploding Artillery shell (Hence Shellshock). They are quite often rendered completely incapacitated without suffering any physical damage. This is also often confused with PTSD.

The Marine began to run across the pitted sand, when the Howitzer shell hit next to him. He was launched into the air, and when he landed, he lay stiff as a board, on the verge of sobbing, he had been shellshocked.

Shellshock by ... Awww, Fuck this. March 8, 2010

Shellshockin' it 

When you join a discord voice server, stay unmuted, and don't say anything for your entire stay.

Prone to suddenly leaving the server after a nondescript number of hours.

Winner 1: Dude are you even there? or are you just Shellshockin' it?
Winner 2:

Winner 1: Hello‽
Winner 2 has left the channel

Shellshockin' it by Kona0 May 31, 2022

shellshocked 

scared , so scared you cant talk , real paranoid and gittery

that fool was so shell shocked he couldnt move

shellshocked by splankinberry August 11, 2003

shellshock.io 

an amazing website that provides nueva kids with things to do during class and a way to communicate.

Nueva kid 1: what shellshock.io server are you playing on?
Nueva kid 2: #08sqsk
Normal person: get a life

shellshock.io by nuevakid1 December 17, 2017

Shell shocker 

kinda like the shocker, but instead of 2 in the pink one in the stink its one in the pink and 2 in the stink

she said she didnt want the shocker she wanted the shell shocker cuz she likes it in the BUTT

Shell shocker by Bigphil76 October 10, 2009