Every Saturday I’ll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words.
cut off: stop, interrupt.
Example:
Some people talk too much on the phone. You have to just cut them off so you can get back to work.
bang for the buck: good value for your money.
Example:
Tom really got a big bang for his buck when he picked up some good file cabinets at the used office furniture store for just ten dollars.