What are the theories as to how charley horses got

their name?

There are several theories as to how charley horses got their name. One theory is that it comes from American baseball slang, where it was used to describe a muscle spasm or cramp that a player might get during a game. Another theory is that it comes from an old American cowboy term, in which "charley horse" was used to refer to a horse that had a stiff or sore leg. Another theory suggests that the term originated from British English, where "charley horse" was used to describe a term for a painful wound caused by gunshot.

Overall, the exact origins of the term "charley horse" are unclear and may have evolved from a combination of various influences.