The Sokal affair gets mentioned in threads such as this. But anyone who has studied the Sokal hoax knows very well that _Social Text_'s editors were bullied into relaxing their peer-reviewed standards at Sokal's insistence.
It puzzles and saddens me that so many intelligent scientists and empiricists repeatedly point to such instances of "postmodernity" as proof that the postmodern emperor has no clothes because such a broad statement is simply untrue. The work of many of late Twentieth Century philosophy by figures such as Jacques Derrida, Luce Irigary, Julia Kristeva, Jean Baudrillard, and many many more deserve serious studied contemplation. Their work is not easy to understand and, yes, they can be interpreted in many different ways.
They are not randomized strings of insider shibboleths.
Occasionally propagating "postmodern" meme generators is a childish form of territorial demarcation and we would all--humanists, scientists, and intellectuals of all kinds--be better off and richer if they stopped serving as propaganda that postmodernity has no cultural or intellectual value.
EDIT: grammar, readability, spelling. Added penultimate, single-sentence paragraph.