Riding the Brown Pony

When a girl is riding a black guy who is wearing a brown horse mask reverse cowgirl.

Did you hear about Becky? She was riding the brown pony all last night with Devonté.

by CreepyK420 August 8, 2015

riding the brown plastic pony

Using cough syrup that contains Dextromethorphan to get high.

"That guy was going on about the secret meaning of Xenogears...he must have been riding the brown plastic pony!"

by Glowing Fish May 25, 2006