What is "razzing"

Usage examples of "razzing".

He was expected to endure the razzing and hazing without complaint, but the frustration was mounting inside him and the pressure from outside was only adding to the strain.

Behind him rolled R2-D2, razzing and squeaking in what was clearly derision.

Hickok and Geronimo were the best of friends, but they never seemed to tire of razzing one another.