“What’s the difference between a pizza and an emo pizza?”/“An emo pizza slices itself.”

An “emo” joke has been told on several images:
 
Q: What’s the difference between a pizza and an emo pizza?
A: An emo pizza cuts/slices itself.
 
The “emo pizza” joke has been cited in print since at least 2005.
 
“What’s the best kind of grass for your front yard?”/“Emo grass because it cuts itself” is a similar joke.
   
     
Everybodies got something to hide
usual pointless ramble and…..EMO JOKES!!
Did you hear about the emo pizza? It cuts itself.
(...)
Posted on Dec. 3rd, 2005 at 02:51 pm
 
CollegeHumor
“Emo pizza - it cuts itself!”>o?
KYLE
June 27, 2006
“Emo pizza - it cuts itself!”
   
Twitter
Loudmouthman
‏@loudmouthman
Blame EVO_TERRA for this one: Have you heard about the Emo Pizza ? It Cuts itself .
3:19 PM - 12 May 2007
 
Twitter
Robin Frousheger
‏@Froosh
What’s the best thing about emo pizza? It cuts itself! *boom tish*
3:54 AM - 13 Sep 2007
 
Google Books
Zen And The Art Of Building A Log Cabin:
The Causes Of Happiness And The Secrets of Enlightenment
By Martin Avery
Lulu Publishing
2011
Pg. ?:
Did you hear about the emo pizza? You don’t have to slice it - it cuts itself!
 
BuzzFeed
The Pizza That Cuts Itself
It comes three flavors – “eternal torment,” “abysmal darkness,” and “cheese.”
posted on Feb. 20, 2012, at 4:59 p.m.
Jimbo Duggins
BuzzFeed Staff
(An “EMO PIZZA” truck is shown.—ed.)
 
WeKnowMemes
Emo Pizza
– SEPTEMBER 30, 2012
POSTED IN: MEMES, PICS
Emo Pizza – the pizza that slices itself
 
Reddit—Jokes
Have you heard about the new emo pizza?
submitted February 9, 2017 by HippieDressedInBlack
It cuts itself
 
Reddit—Jokes
Whats the difference between a pizza and an emo pizza?
submitted February 26, 2017 by its_samaclause
An emo pizza slices itself.
Note - found online