pony

pony
/ˈpəunɪ; `ponɪ/ n
1 small type of horse 一种矮马; 小型马.
2 (dated Brit sl 旧, 俚) 25 25英镑.
3 (idm 习语) on Shanks's pony/mare => shank.

牛津英汉双解词典