Clamped a tax on imports.
When you use a device to hold a piece of wood firmly in place on a table, this is an example of when you clamp the wood to the table.
A clothespin used to keep a bag of chips shut is an example of a clamp.
To clamp a curfew on the town.
- To become more strict (with).
Idioms and Phrasal Verbs
Origin of clamp
- Middle English from Middle Dutch klampe
From American Heritage Dictionary of the English Language, 5th Edition