“Why is ground beef so popular?”/“Because the flying cows are really hard to catch.”

The term “ground beef” does not mean that there is such a thing as “flying beef,” but there are jokes. “Isn’t all beef ground beef? I have never seen any flying cows” was posted on Twitter on March 29, 2011. “All beef is ground beef unless there is such a thing as flying cows” was posted on Twitter on March 30, 2017.
 
A riddle was posted on Reddit—Jokes on April 22, 2017:
 
Q: Why is ground beef so popular?
A: Because the flying cows are really hard to catch.
 
   
Twitter
StealTheDeal‏
@StealTheDealCom
Isn’t all beef ground beef? I have never seen any flying cows.
1:12 PM - 29 Mar 2011
 
Twitter
StealTheDealMontreal‏
@StealTheDealMon
Isn’t all beef ground beef? I have never seen any flying cows.
1:12 PM - 29 Mar 2011
 
Twitter
Doug Wiley‏
@WileyComedy
I’m a big fan of ground beef, because let’s be honest, the thought of flying cows is absolutely horrifying.
9:58 AM - 19 May 2015
 
Twitter
Corey‏
@corsal
All beef is ground beef unless there is such a thing as flying cows
9:00 AM - 30 Mar 2017
   
Reddit—Jokes
Why is ground beef so popular?
submitted April 22, 2017 by crump48
Because the flying cows are really hard to catch.
 
Twitter
Anthony Garvone‏
@AnthonyGarvone
The reason why ground beef is so popular in the United States is because flying cows are so hard to catch.
11:29 AM - 22 Apr 2017
 
Twitter
Lame Jokes‏
@lamejokes_net
Why is ground beef so popular? http://ift.tt/2p7DNnQ
Because the flying cows are really hard to catch.
#jokes
4:52 PM - 22 Apr 2017