"A style and concept in the arts characterised by distrust of theories and ideologies and by the drawing of attention to conventions".
"Of or relating to art, architecture, or literature that reacts against earlier modernist principles, as by reintroducing traditional or classical elements of style or by carrying modernist styles or practices to extremes: "It [a roadhouse] is so architecturally interesting... with its postmodern wooden booths and sculptural clock."
Taking classical elements and taking them to the extreme
Postmodernism tends to resist definition, hence it is difficult to classify and describe as a movement (usually post ww2)
After world war 2, they were shell shocked, little suspicious of the established order, so they kinda go crazy (also war kinda make you crazy)
Intertextuality
Metafiction
Pastiche
Maximalism and minimalism
Playfulness and black humour
Fragmentation
Magic realism
Technoculture and hyperreality
Paranoia
Temporal distortion
Note that Top Girls and M. Butterfly are both postmodernist