(figuratively) to let guns do the talking; to settle the argument with guns

(figuratively) to speak to someone who doesn't listen; to preach to deaf ears

to talk for the sake of talking, to waffle, to blow smoke

(Quebec, informal) to talk through one's hat

(simile, informal) to speak French poorly

to make small talk, to chit-chat

(transitive with de) to talk through one's hat, to speak about an issue one doesn't understand

to make small talk, to chit-chat

(figuratively) to put one's foot in one's mouth, to be like a bull in a china shop, to hit the wrong note (to broach a sensitive topic in an inappropriate setting, where that topic is taboo; to be completely tactless)

first-person singular future of parler