Refuse to talk or stop talking, fall silent
English: close up, clam up, dummy up, shut up, belt up, button up, be quiet, keep mum
clam_upEnglish
be quiet, belt up, button up, clam up, close up
be quiet, belt up, button up, clam up, close up
English: close up, clam up, dummy up, shut up, belt up, button up, be quiet, keep mum