1) a comment used to make fun of a person (gibe)

2) a person who is clever at imitating others, especially in order to make fun of their habits, appearance etc; to look like (something) closely (mimic)

3) not real or genuine; to make fun of (a person, way of speaking etc) (especially by copying in an unkind or disrespectful way) (mock)

4) to make fun of (a person) playfully or unkindly; to annoy (an animal) (e.g. by pulling its tail) (tease)