clammed

Kellner had clammed up, and when the now suspicious editor had tried to check Colquhoun's tale personally, Colquhoun had vanished.

But he clammed up about that, hoping to keep it a secret until he could go back and claim it.

The crack above the door should not be clammed until the muffle begins to get warm.

Clammed means starvation; that is, care killed the cat; for want of food the entrails get "clammed."