pony

noun
  1. A small horse, typically one that is less than 14.2 hands (58 inches, 147 cm) at the withers. noun
    The children enjoyed riding the pony at the petting zoo.
    She bought a pony for her daughter's birthday.
  2. A small glass or measure of alcohol, typically one ounce. noun
    He ordered a pony of whiskey to go with his beer.
    The bartender poured a pony of brandy for the customer.
  3. A crib or cheat sheet, especially one used by students. noun
    He was caught using a pony during the exam.
    She relied on a pony to get through her Latin class.
  4. To pay or contribute a specific amount of money, often used with 'up'. verb
    Everyone had to pony up $10 for the group gift.
    He ponied up the cash for the concert tickets.