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. Currently, we’re looking at some common English idioms.
fill in for someone: substitute for someone, do someone’s job while they are unable to do it or absent
Example:
Mark’s going to fill in for Sarah while she’s on vacation next week.
fresh out of something: when you have just used up the last of something
Example:
Oh, we are fresh out of milk. Could you run to the store and get some more for me?