“In America, dogs are k-9s. But in China, dogs are e-10”

A dog joke was posted on Reddit—Jokes on September 7, 2017:
 
“In America, dogs are k-9s. But in China, dogs are e-10.”
 
The “E10”/“eaten” pun quickly became popular.
 
   
Reddit—Jokes
In America, dogs are k-9s
submitted September 7, 2017 by silenced52
But in China, dogs are e-10
 
Twitter
Best of Reddit
@BestoReddit
In America, dogs are k-9s : But in China, dogs are e-10
12:06 PM - 7 Sep 2017
 
Twitter
Jan Schill
@schill_jan
In America, dogs are k-9s
But in China, dogs are e-10
-from Reddit-
2:26 PM - 7 Sep 2017
 
Twitter
Guess my name!
@itzmestarr
In America, dogs are k-9s..
But in China, dogs ar e-10
4:36 PM - 7 Sep 2017
   
Twitter
Jared Gruber
@DJijuhfkdyobish
Asian dogs are e-10
1:17 AM - 8 Sep 2017 from Stockton, CA