rattletrap🔊

Mechanically unreliable or in disrepair.

(informal) A mechanical device, particularly an automobile, that is worn out, run down, or mechanically unreliable as indicated by noises it makes in operation. +

(dated) Any piece of miscellaneous equipment or junk.

A type of noisemaker in which the teeth of a gear repeatedly bend and release a stiff tongue.

(dated, slang, derogatory) A person's mouth.