What is the meaning of gibe?

noun

• An aggressive remark directed at a person like a missile and intended to have a telling effect.
  • usage: "his parting shot was `drop dead'"; "she threw shafts of sarcasm"; "she takes a dig at me every chance she gets"
  • synonyms: shot, shaft, slam, dig, barb, jibe

verb

• Be compatible, similar or consistent; coincide in their characteristics.
  • usage: "The two stories don't agree in many details"; "The handwriting checks with the signature on the check"; "The suspect's fingerprints don't match those on the gun"
  • synonyms: match, fit, correspond, check, jibe, tally, agree
• Laugh at with contempt and derision.
  • usage: "The crowd jeered at the speaker"
  • synonyms: jeer, scoff, flout, barrack