pony express noun

(in the USA) a former method of long-distance postal delivery employing relays of horses and riders

poˈnyskin noun

The skin of a foal, esp from the Kyrgyz Steppes, used as a fur

poˈnytail noun

A hair style in which the hair is gathered together at the back and hangs down like a pony's tail

poˈny-trekking noun

Cross-country pony-riding in groups as a pastime

Jerusalem pony

An ass

one-trick pony (informal)

A person who is very good at one thing but fails to achieve wider success