Satire is defined as the the use of humor, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices. This exposure and criticism is particularly used in the context of contemporary politics and other topical issues.
Chaucer wrote The Canterbury Tale, a satiric literature. He uses the characters to represent real people in the real world. Through Chaucer's representation of the characters, the readers became aware of the vices and negative behavior that are present in real life.