1 a horse of any small breed.
2 a small drinking-glass.
3 (in pl.) sl. racehorses.
4 Brit. sl. pound25.
Phrases and idioms:
pony-tail a person's hair drawn back, tied, and hanging down like a pony's tail. pony-trekker a person who travels across country on a pony for pleasure. pony-trekking this as a hobby or activity.
Etymology: perh. f. poulney (unrecorded) f. F poulenet dimin. of poulain foal
Useful english dictionary. 2012.