Jeerer is a noun that refers to a person who mocks or ridicules someone or something. There are several synonyms for this word that can be used to describe someone who indulges in this behavior. For instance, a mocker is a person who derides or belittles others for their own amusement. A taunter is someone who insults or teases another person with the intention of getting a reaction. A scoffer is an individual who ridicules or mocks someone or something with a contemptuous attitude. A cynic is someone who doubts or distrusts anything and everything and makes derisive, sarcastic comments about people or events. Overall, there are various synonyms for jeerer that can be used to describe one who mockingly ridicules others.