expression, i-adjective
demanding; hard to please; fussy
Describes a person who has many requests or high standards, often making things difficult for others. The phrase literally means 'there are many orders/requests'.
彼は注文が多いので、一緒に仕事をするのが大変だ。
He is so demanding that it's tough to work with him.
That customer is always fussy, and the staff have a hard time.