Definitions
1.nounHorsepower
2.noun(with the) horse racing
3.nounA small horse; specifically, any of several small breeds of horse under 14.2 hands at the withers.
4.nounA small serving of an alcoholic beverage, especially beer."1879, “Some Queer Interviews: Interview with a Pony of Beer”, Puck, Vol. 5–6, p. 435"
5.noun(New South Wales, Victoria) A serving of 140 millilitres of beer (formerly 5 fl oz); a quarter pint.
6.nounTwenty-five pounds sterling.
7.nounA translation used as a study aid; loosely, a crib, a cheat-sheet.
8.nounA ponytail hairstyle.
9.nounCrap; rubbish, nonsense.