Surreal humour (also called surreal comedy, absurdist humour, or absurdist comedy) is a form of humour predicated on deliberate violations of causal reasoning, thus producing events and behaviours that are obviously illogical. Portrayals of surreal humour tend to involve bizarre juxtapositions, incongruity, non-sequiturs, irrational or absurd situations, and expressions of nonsense.
Surreal humour grew out of surrealism, a cultural movement developed in the 20th century by French and Belgian artists, who depicted unnerving and illogical scenes while developing techniques to allow the unconscious mind to express itself. The movement itself was foreshadowed by English writers in the 19th century, most notably Lewis Carroll and Edward Lear. The humour in surreal comedy arises from a subversion of audience expectations, emphasising the ridiculousness and unlikeliness of a situation, so that amusement is founded on an unpredictability that is separate from a logical analysis of the situation.