mouth

be all mouth (and no trousers) tend to talk boastfully without any intention of acting on your words. informal

1998Oldie What was the point of the Sitwells?…The image was the point, transcending mere achievement…The Sitwells were all mouth and no trousers.

down in the mouth: seedown.

(from) hand to mouth: seehand.

froth at the mouth: seefroth.

have your heart in your mouth: seeheart.

the lion's mouth: seelion.

make someone's mouth water

1 cause someone to salivate at the prospect of appetizing food.

2 cause someone to feel an intense desire to possess something.

melt in the mouth: seemelt.

put your money where your mouth is: seemoney.

put the mouth on someone cause someone's performance to deteriorate by praising it. informal, chiefly Australian

put words in (or into) someone's mouth

1 falsely report what someone has said.

2 prompt or encourage someone to say something.

run off at the mouth talk excessively or indiscreetly. North American informal

shoot your mouth off: seeshoot.

stop someone's mouth: seestop.

(straight) from the horse's mouth: seehorse.

take the words out of someone's mouth say what someone else was about to say.

watch your mouth be careful about what you say. informal

word of mouth: seeword.