Barking up the wrong tree" means to place attention on the wrong thing.

Calling someone's bluff means you want a person to tell the truth about something.

Clearing the air means that they bring those issues out in the open to work through them.

A person who is a "fair-weather friend" is loyal in good times, but not when things get difficult.

If you got up on the wrong side of the bed, it means you started the day in a bad way.

Food for thought. It means to think carefully about something.

Flying by the seat of one's pants means that you don't have a set plan going forward.

The word "junk" means something that does not have value. It can be thrown away."Junk food" is food that's not good for you.

Being up the creek without a paddle, means you are in a bad situation.

Blow off steam. That's what people do when they need to get rid of negative, or bad feelings.

A "poker face" is one without expression or emotion.The saying comes from the card game, poker, where players don’t show any reaction to the cards they are dealt.

A "last-ditch effort" is a final attempt to succeed at something.

If an object "bites the dust," it is beyond repair, and cannot be fixed.

If the apple does not fall far from the tree, it means two people are very similar.

If you "know the ropes," you know how to do something, or how to get something done.