A stable of guys who are available to have no-strings-attached sex with you on demand. It's like in polo, where one you trade your tired pony for a fresh one as you play the game.
She has quite a string of ponies (tm); she gets laid whenever she wants to.

I had to cut my string of ponies (tm) loose when I got serious with Barry.
by Pagan Marbury July 20, 2006
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