Kill Yourself 

A term meaning "I respectfully disagree with your opinion". Believed to have originated on tumblr, but most often seen on youtube.

John: I enjoy the music of Paramore

Joan: Kill yourself.

John: We'll have to agree to disagree.

Kill Yourself by Mickulty September 27, 2013

We all die you either kill yourself or get killed 

Whatcha gonna do whatcha gonna do

vines

We all die you either kill yourself or get killed

oh yee i luv dat vine

We all die you either kill yourself or get killed by gnawy02 February 17, 2019

kill yourself immediately 

To kill yourself in a swift manner in order to prevent you from annoying anyone else

n00b:Hay their budy!

Extremely l33t guy:Learn how to spell,then kill yourself immediately!

kill yourself immediately by Jimmy Cracka March 13, 2005

mcfucking kill yourself 

mcfucking kill yourself is a high quality roast and it means kill yourself from diabetes which is quite harsh but a fucking quality roast

Guy 1: bro your shoes are fucking shit
Guy 2: mcfucking kill yourself
Guy 1: *ties noose around neck and jumps*

mcfucking kill yourself by minecraftderp69 February 25, 2017

National Kill Yourself Day 

April 21st is National Kill Yourself Day because it is the day after 4/20. After getting high as hell, you feel like shit. So if someone says kill youself today, then don’t hesitate bitch.

Kate: Bridget, it’s National Kill Yourself Day.
Bridget: Oof, gotta go swallow some pills then.

National Kill Yourself Day by Julia Evergreen May 28, 2018

kill yourself and fuck the body

An expression that gently informs the listener that their company or commentary is not appreciated.

See also: fuck off and die

You: Hi. Nice weather, huh?
Me: Kill yourself and fuck the body!

kill yourself and fuck the body by C. S. July 7, 2005

kill yourself 

A way of saying that someone is being stupid.
Usually this doesn't mean that they want the other to actually kill themself, just to say they are being stupid.

Example:
Person 1: Justin Bieber is amazing!!!!!
Person 2: Kill Yourself.....

kill yourself by Sezziex July 26, 2016