razz

To playfully tease or mock someone, often in a good-natured or humorous way.

"They would often razz him about his new haircut."

To make a rude, vibrating sound with the tongue and lips, expressing derision.

"The crowd began to razz the referee."

A rude, vibrating sound made with the tongue and lips to express derision.

"He gave a loud razz of disapproval."