Idioms

bad-mouth: say unkind, unflattering, embarrassing (and probably untrue) things about someone.

A: "I don't believe what Bob said. Why is he bad-mouthing me?"
B: "He's probably jealous of your success."

be fed up with (with someone or something): be out of patience (with

someone or something);
be very tired of someone or something.

"Bill, you're too careless with your work. I'm fed up with
apologizing for your mistakes!"

be in and out: be at and away from a place during a particular time.

"Could we postpone our meeting until tomorrow? I expect to
be in and out of the office most of the day today."

be on the go: be very busy (going from one thing or project to another).

"I'm really tired. I've been on the go all week long."

be on the road: be traveling.

"You won't be able to contact me tomorrow because I'll be on the road."