Roundhouse

n.	1.	A constable's prison; a lockup, watch-house, or station house.
	2.	(Naut.) A cabin or apartament on the after part of the quarter-deck, having the poop for its roof; - sometimes called the coach.
	3.	A house for locomotive engines, built circularly around a turntable.

Noun	1.	roundhouse - workplace consisting of a circular building for repairing locomotives
	2.	roundhouse - a hook delivered with an exaggerated swing

Long Melford, backhand, backhander, backstroke, boathouse, bolo punch, carbarn, carport, carriage house, fix-it shop, garage, hangar, haymaker, hook, one-two, repair shop, round-arm blow, short-arm blow, sidewinder, swing, uppercut