What is the meaning of razzing?

noun

• A cry or noise made to express displeasure or contempt.
  • synonyms: boo, hoot, Bronx cheer, hiss, raspberry, razz, snort, bird

verb

• Harass with persistent criticism or carping.
  • usage: "The children teased the new teacher"; "Don't ride me so hard over my failure"; "His fellow workers razzed him when he wore a jacket and tie"
  • synonyms: tease, razz, rag, cod, tantalize, tantalise, bait, taunt, twit, rally, ride