Go bananas
To go wild, to go crazy with excitement or other extreme emotions.
Burst at the seams
To be filled beyond regular capacity.
The elephant in the middle of the room
A huge and obvious problem that everyone avoids talking about.
Have a bone to pick with someone
To have a grievance that needs to be discussed.
Go cold turkey
Abrupt complete cessation of the use of something addictive. e.g.: social media, cigarretes
An earworm
A catchy song or tune that you can’t seem to get out of your head.
Hold your horses
Hold on; be patient.
Get up on the wrong side of the bed
To begin the day with a bad mood.
Run around like a headless chicken
To run around doing a lot of things in a disorganized, ineffective manner.