If someone clams up, they stop talking, often because they are shy or to avoid giving away secrets. (INFORMAL)
As soon as I told her my name, she clammed up.
PHRASAL VERB: V P
If someone clams up, they stop talking, often because they are shy or to avoid giving away secrets. (INFORMAL)
As soon as I told her my name, she clammed up.
PHRASAL VERB: V P
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012