“Call into question”

“The early bird catches the worm”

People who act early have an advantage.

“Throw someone under the bus”

To sacrifice someone else to protect yourself.

“In a nutshell”

In a very brief and clear way.

“The tip of the iceberg”

A small visible part of a much bigger problem or situation.

“Cut to the chase”

To talk about the main point without wasting time.

“A wake-up call”

An event that makes someone realize action is needed.

“Close call”

A situation where something bad almost happened.

“Call someone’s bluff”

To challenge someone to prove that what they say is true.