(idiomatic) To behave in a way such as to cause damage to one's own faction, political party, etc.

A machine that spurts out snow over pistes where there is little or no snow cover.

plural of snow cannon

A device that shoots a large amount of water at high pressure through a hose-like tube.

A device used during aircraft testing to discharge bird carcasses into airframes and engines to determine resistance to such impacts.

plural of chicken cannon

A bone resulting from the fusion of metacarpals or metatarsals in some artiodactyls. / The metacarpal of a horse. / The metatarsal of a horse.

Alternative form of cannonball

A child's homemade toy made by attaching an elastic band to a cotton reel to form a slingshot that could shoot a pencil or other slim object through the bore of the reel.

plural of water cannon