“I just flew in and boy, are my arms tired!” is a very old joke (1940s). The arms are tired from flapping so much (like a bird’s wings).
   
Chef Boyardee is an American brand of canned pasta, and “Boyardees” sounds like “boy, are these.”
   
“‘I just flew back from a Spaghetti-O’s convention & Boyardee’s arms tired’ -Chevelle Wiseman” was posted on Twitter by Owen Ashworth on February 19, 2010. “He just flew back from making all the Spaghettios and Boyardee’s arms tired. #GOML” was posted on Twitter by Hater Crusader on February 28, 2019.
     
“I just ate a ton of canned ravioli and Boyardees arms tired” was posted on Twitter by Douglas Paul Barrett on February 6, 2014. “Just flew in from the ravioli factory and Boyardee’s arms tired” was posted on Twitter by Argon Dreamcast Evangelion on October 6, 2020. “I just flew in from a Ravioli convention. Boyardees arms tired” was posted on Reddit—Dadjokes on January 22, 2022.
   
“I just flew in from Italy and chef boyardee’s arms tired” was posted on Twitter by Alex on August 19, 2017. “I just flew in from italy and boyardee’s arms tired” was posted on Twitter by copper silvergold, pi on September 21, 2021.
 
     
Wikipedia: Boyardee
Chef Boyardee is an American brand of canned pasta products sold internationally by Conagra Brands. The company was founded by Italian immigrant Hector Boiardi in Milton, Pennsylvania, U.S., in 1928.
     
Twitter   
Owen Ashworth
@AdvanceBase
“I just flew back from a Spaghetti-O’s convention & Boyardee’s arms tired” -Chevelle Wiseman
4:10 AM · Feb 19, 2010·Twitter Web Client
 
Twitter
AF As Fuck
@JasonCaley
I just flew in from visiting a processed food plant, and boyardee’s arms tired.
3:57 AM · Oct 9, 2012·Twitter Web Client
 
Twitter
Douglas Paul Barrett
@dpaulbarrett
I just ate a ton of canned ravioli and Boyardees arms tired.
4:25 PM · Feb 6, 2014·Twitter for Mac
     
Twitter
Alex
@hashtagkeel
I just flew in from Italy and chef boyardee’s arms tired
11:25 PM · Aug 19, 2017·Twitter for iPhone
   
Twitter
Hater Crusader
@HaterCrusader
@AsianPatDixon He just flew back from making all the Spaghettios and Boyardee’s arms tired. #GOML
9:29 PM · Feb 28, 2019·Twitter Web Client
   
Twitter
Argon Dreamcast Evangelion
@synthandlasers
Just flew in from the ravioli factory and Boyardee’s arms tired.
8:17 PM · Oct 6, 2020·Twitter for Android
 
Twitter
seahorse (but on land)
@nomadberg
Just flew in from the tinned spaghetti convention and chef boyardees arms tired
4:14 AM · Jul 30, 2021 from Sydney, New South Wales·Twitter for Android
   
Twitter
Kevin L. Schwartz
@KevinLSchwartz
I just flew in from a pasta sauce convention, and Boyardee’s arms tired.
Spaghett it?
10:42 AM · Jul 30, 2021·Twitter Web App
   
Twitter
copper silvergold, pi
@ChormJones
I just flew in from italy and boyardee’s arms tired
9:33 PM · Sep 21, 2021·Twitter for iPhone
 
Reddit—Dadjokes
Posted by u/avocado1985 January 22, 2022
I just flew in from a Ravioli convention.
Boyardees arms tired.
 
Twitter
joke of a guy
@the_alphaman_
I just flew in from a Ravioli convention.
Boyardees arms tired.
#humour
11:00 PM · Jan 22, 2022·Kipruto
 
Twitter
keepingitcreel
@Keepingitcreel
I just flew in from a Ravioli convention. Boyardees arms tired.
3:57 AM · Jan 23, 2022·IFTTT