what is an ambi turner

An ambi-turner is a person or thing that has the ability to turn both ways. The term was popularized by the 2001 comedy film "Zoolander," in which the title character, played by Ben Stiller, is unable to turn left and wishes he could turn both ways, which would make him an ambiturner. The term is a compound word formed from "ambi," meaning both, and "turner," meaning one who turns.