“A Swedish Fish is that which has no Finns”

Swedish Fish is a fish-shaped, chewy candy. Sweden is a country next to Finland.
   
“A Swedish Fish is that which has no Finns” was posted on Twitter by Tony Bowman on March 11, 2019. “How can you tell if a fish is a Swedish fish? It only has Finns on one side” was posted on Reddit—Jokes on June 29, 2021.
 
   
Wikipedia: Swedish Fish
Swedish Fish is a fish-shaped, chewy candy originally developed by Swedish candy producer Malaco in the late 1950s for the U.S. market. The wrapper calls them “a fat free food”, and they are gluten-free. The sweet fish-shaped treats are marketed in different colors and flavors.
       
Twitter
arson
@moldbaby56
why don’t swedish fish have fins
10:44 PM · Dec 31, 2017·Twitter for iPhone
 
Twitter
Tony Bowman
@TonyBowman4
Replying to @scotthetsko and @13WHAM
A Swedish Fish is that which has no Finns.
4:59 PM · Mar 11, 2019·Twitter Web Client
 
Reddit—Jokes
Posted by u/Blopsk June 29, 2021
How can you tell if a fish is a Swedish fish?
It only has Finns on one side.