Clammed up and Cut off

Cut off and clammed up are semantically related. in silence topic. In some cases you can use "Cut off" instead a verb "Clammed up", when it comes to topics like make or be quiet.

Cut off verb - To bring (as an action or operation) to an immediate end.

Clammed up and cut off are semantically related. Sometimes you can replace term "Clammed up" with "Cut off", this phrasal verbs are similar.