The obvious and often offensive displays of hacking, spitting, nostril-clearing and public defecation/urination common to the city of Shanghai.

Also encapsulates the greasy dishes, sticky tables, and public toilets that look like they're from a Stephen King novel.
"Did you see that woman hold her baby over the trash can so it could take a shit? 'S some mad Shanghygiene."

"Yup. Very Shanghygienic."
by KylefromShanghai November 21, 2007
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