What does Rantallion mean?
Rantallion is a noun.
“One whose scrotum is so relaxed as to be longer than his penis,
i. e. whose shot pouch is longer than the barrel of his piece.”
[“Dictionary of the Vulgar Tongue,” Grose, 1788]
Who knew!
https://www.dictionary.com/browse/rantallion
https://en.wiktionary.org/wiki/rantallion