/poh"nee/ , n. , pl. ponies , v. , ponied, ponying .
n.
1. a small horse of any of several breeds, usually not higher at the shoulder than 14 1 / 2 hands (58 in./146 cm).
2. a horse of any small type or breed.
3. Slang. a literal translation or other text, used illicitly as an aid in schoolwork or while taking a test; crib.
4. something small of its kind.
5. a small glass for liquor.
6. the amount of liquor it will hold, usually one ounce (29.6 ml).
7. a small beverage bottle, often holding seven ounces (196 g): We bought a dozen ponies of Mexican beer.
8. Older Slang. a diminutive chorus girl.
9. See pony pack .
10. Brit. Slang. the sum of 25 pounds.
v.t.
11. Slang. to prepare (lessons) by means of a pony.
12. Racing Slang.
a. to be the outrider for (a racehorse).
b. to exercise (a racehorse) by having a rider mounted on another horse lead it at a gallop around a track.
v.i.
13. to prepare a lesson or lessons with the aid of a pony.
14. pony up , Informal. to pay (money), as in settling an account: Next week you'll have to pony up the balance of the loan.
[ 1650-60; earlier powney poulenet, dim. of poulain colt pullanus (L pull ( us ) FOAL + -anus -AN); see -ET ]