Mystic Pony

A slang word for methamphetamine. Used as if one was riding the mystic pony.

That guy? Oh yeah, he's definitely riding the mystic pony.

The Mystic Pony

Slang term for doing meth.

Me: "Hey Dave. Are you riding the mystic pony?"
Dave: "AAAAAAAA;SLHDG;ALSDKJGA;SDLGKJADS;FLKJASDF;LKSJ"