rattletrap

Plural: rattletraps

Adj

• Mechanically unreliable or in disrepair.

Noun

• A mechanical device, particularly an automobile, that is worn out, run down, or mechanically unreliable as indicated by noises it makes in operation.
• 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.
• A person's mouth.

Examples

• Mom always worried about our safety in my friend's rattletrap. I told her not to worry, as it can't go fast enough to be dangerous.
• Shut your rattletrap!

Synonyms

banger, beater, bucket of bolts, bucket of rust, clunker, crate, crock, flivver, hooptie, jalopy, junker, lemon, old banger, rattletrap, rustbucket, shed, shitbox, shitbucket, shitcan, shitpot, tin Lizzie, trap, wreck, yap