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>all the retards in these comments don't understand the origin of the reference
Fiddler crabs and other pseudoterrestrial ones throw foam under stress circumstances; it has been theorized it is a form of defense, a way of balancing their internal pH, or breathing on land, however, it's a subject that lacks research.
It may be le funny meem, but it has some proper research and lore behind. Now shut the fuck up.