o, n, p, u, y are letters that make 'pony up'
PO, up, on, pony, NY, Po are words within 'pony up'
1 possible definitions for 'pony up'
Under this definition, pony up is a verb and has the following properties:
cough up, spit up have the same meaning as 'pony up'
'pony up' can be a type of give.