“Escargot” (French for “snail”) is sometimes given the joke “l’ess/less cargo.”
   
“Why do the French transport snails without their shells? Less cargo” was posted on Twitter by Paul Eggleston on April 3, 2015. “Q: Why do the French transport snails without their shells? A: Less cargo” was posted on Twitter by Mad As A March Hare on May 24, 2019.
   
“Why are French snail imports down? Because there is less cargo” was posted on Twitter by Ian Parsons #FBPE #FBNHS on May 3, 2021.
   
“Why are the French snails fastest in the world?”/“L’ess cargo” is another version of the “escargot” joke.
 
   
Wikipedia: Escargot     
Escargots, IPA: [ɛs.kaʁ.ɡo], (French for snails) is a dish consisting of cooked edible land snails. They are often served as an hors d’oeuvre and consumed by the French people, as well as people in Germany, Great Britain, Italy, Portugal, and Spain. They are also typical of the cuisines of Cyprus, Crete, and other areas of mainland Greece, as well as of the North African countries Tunisia, Algeria and Morocco. The word escargot is also sometimes applied to living examples of those species which are commonly eaten in this way.
   
Twitter
Simon Dunn
@sighdone
Do you know why slugs ditched the snail shell? Less cargo.
8:28 PM · Aug 31, 2010·Twitter Web Client
   
Twitter
PHIL SWALES, KING OF COMEDY!
@philswales
Why do slugs move faster than snails?  Less cargo.
1:49 AM · Apr 17, 2014·Twitter Web Client
   
Twitter
Public Benjamin
@PublicBenjamin
What’s the difference between a slug and a snail? Less cargo.
11:44 AM · Nov 19, 2014·Twitter for iPhone
   
Twitter
Paul Eggleston
@pauleggleston
Why do the French transport snails without their shells?
Less cargo.
5:32 PM · Apr 3, 2015·Twitter for Android
   
Twitter
Paul Eggleston
@pauleggleston
Why do the French transport snails without their shells?
Less cargo.
6:18 AM · Jul 4, 2015·Twitter for Android
   
Twitter
PHIL SWALES, KING OF COMEDY!
@philswales
Why do slugs move faster than snails?  Less cargo.
1:31 PM · Aug 20, 2016·Twitter Web Client
 
Twitter
Mad As A March Hare
@twowitwowoo
Q: Why do the French transport snails without their shells?
A: Less cargo.
2:14 AM · May 24, 2019·Twitter Web Client
   
Twitter
Christophe Talbotski
@talbzmeister
Replying to @bushontheradio
Why do snails make for excellent freight?
Less cargo.
8:28 AM · Apr 29, 2021·Twitter for Android
 
Twitter
Ian Parsons #FBPE #FBNHS
@IanLabour
Why are French snail imports down?
Because there is less cargo.
3:21 PM · May 3, 2021·Twitter Web App