vessel

burst/bust a blood vessel (informal)

1. to use a lot of effort doing something. I'd like the designs as soon as possible, but don't bust a blood vessel!

2. to become very angry and start shouting. He nearly burst a blood vessel when he heard what they'd done to his car.

See also: blood, burst, bust

Empty vessels make (the) most noise/sound.

something that you say which means that people who talk a lot and frequently express their opinions are often stupid. David talks as if he's an expert on everything, but empty vessels make most noise.

See also: empty, most, noise, sound