It means to calm down and be patient. Often in races horses would start before the gun or bell sounded, and a phrase came about "hold your horses"hold your horses is a figure of speech saying clam down or take a chill pill.
The hardware store owner told the impatient customer "Hold your horses, I'm coming!" Though you might be anxious to know how you did on the test, you will have to hold your horses until all of the papers are graded.
The phrase "healthy as a horse" is believed to come from America and the UK in the 1860s. Horses were believed to be very powerful and energetic, meaning that it would be good to be as healthy and energetic as a horse.
"Hold your horses" is an example of an idiom, which is a phrase that has a figurative meaning different from its literal meaning. In this case, the phrase is used to tell someone to be patient or wait. The origin of this idiom can be traced back to horse riding, where holding one's horses meant to keep them still and under control.
The same as hold your horses
It comes from the phrase "Why do only fools and horses work?"
Hold Your Horses - 1921 was released on: USA: 28 January 1921
Hold Your Horses - 1929 was released on: USA: 16 January 1929
Hold Your Horses - 1954 was released on: USA: 13 March 1954
The cast of Hold Your Horses - 1954 includes: Art Gilmore as Narrator
Britches, or breeches, are pants used in riding horses. Meaning hold onto your pants. Can also mean the same thing as "hold your horses"
The cast of Hold Your Horses - 1929 includes: Ned La Salle as Ike