top banana

(noun) the most important person or boss in a group

Example Sentences:

A: Our company is going to fire 50% of our staff.
B: How do you know?
A: I heard it from the top banana.

The top banana in our company is so funny, everyone loves him.

From the Blogs:

Top Banana Christmas

Media:

Similar idioms:

1. fight fire with fire
2. misery loves company
3. top-notch
4. blow one’s top
5. get along like a house on fire
6. chicken
7. creeper
8. riot