“Y’alloween” (“y’all” + “Halloween”) is something that might be said in a jocular version of the holiday in the South. “Y’alloween” was printed in the Orange County Register (Santa Ana, CA) on October 28, 2006.
   
“What’s a cowboy’s favorite holiday?”/“Y’alloween” was posted on Reddit—Jokes on July 15, 2019.
 
     
28 October 2006, Orange County Register (Santa Ana, CA), “Y’alloween” by Heather Ignatin, pg. 1:
A haunted Southern mansion opens today in Laguna Niguel.
     
Twitter
Courtney Rae
@C_Note4934
Happy Y’alloween #texasstyle
3:13 PM - 31 Oct 2012
   
,a href=“https://twitter.com/_RyanTucker/status/786050975723380737”>Twitter
THE CRIMSON CHIN
@_RyanTucker
Halloween in Atlanta is officially called Y’alloween now thanks for agreeing
11:48 PM - 11 Oct 2016
   
Twitter
Harrison H. Parker
@omw2innisfree
Southern states are really missing out by not doing Y’alloween.
3:13 PM - 29 Oct 2016
   
Twitter
chelsea △⃒⃘ ⚯͛
@cmmeier11
You know you live in Texas when the radio stations keep saying happy Y’alloween
8:45 AM - 31 Oct 2016
     
Twitter
brother bungus
@freshfighter
More brother bungus Retweeted LeVar Burton
Happy Y’alloween brother bungus added,
LeVar Burton
@levarburton
Happy Halloween, Y’all…
12:01 PM - 31 Oct 2016
     
Twitter
oli
@leanonmypride
in texas do they call it y’alloween
1:46 PM - 26 Jul 2018
   
Twitter
kassidee renee
@honeybeekassi
Peition to change “Halloween” to “Y’alloween” in Texas.
5:27 PM - 26 Sep 2018
     
Twitter
Pirate Software
@PirateSoftware
Dress up like a cowboy and hand out beans on Halloween.
Trick or Beans for Y’alloween.
7:25 PM - 29 Oct 2018
 
Reddit—Jokes
Posted by u/2scoopsrice July 15, 2019
What’s a cowboy’s favorite holiday?
Y’alloween