He thinks he's the poo bah of the office.

Poo-Bah is a title used to describe a person who holds multiple positions of power or authority.

He considered himself the poo-bah of the group.

He acted like a pooh-bah, making all the decisions without consulting anyone else.

He acted like a pooh bah, making all the decisions without consulting anyone else.

Bah humbug! I don't believe in all this holiday cheer.

The Pooh-Bahs gathered for their annual meeting.

The poo-bahs gathered for their annual meeting.

The pooh-bahs gathered for a meeting to discuss the future of the organization.

The Poo-Bahs gathered for their annual meeting.