clam up

Meaning

1. (informal, intransitive) To become silent; to stop talking.
2. (ambitransitive) To make or become clammy.

Synonyms

be quiet

dummy up

shut up

button up

keep mum

belt up

close up

keep silent

hold in

quiesce

quiet down

Translations

stare zitto

callar

callar

خَرِسَ

zum Verstummen bringen

ruhig stellen

كفّ عن الكلام

schweigen

totschweigen

still werden

still sein

pst! sagen

ηρεμώ

κλείνω το στόμα

سكت

Etymology

By analogy with a clam closing itself. Compare clamshell (“mouth”), clam (“mouth”).