Top Definition
A low quality burger whose meat is of unknown origin. Often served at McDonalds and to a lesser extent, Burger King.
That Big Mac I had tasted like crap, think they served me a fuckin' horseburger!
by rawtoenail June 21, 2007
Burger made from horses.
Mostly from horses that fall down at tracks. They kill them and make them into horseburgers.
Im so hungry I could eat a horseburger.

What u eatin there?
Its a Horsebugrer

Gallop to a horseburger near you!!
by Mike D, that bme February 10, 2009
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