A person who is excessively prudish, proper, or particular about manners and morality; a fussy or prim person.
Possibly from 'prim' or dialectal words meaning 'to purse the lips.' First used in American English in the early 1900s to describe overly proper people.
The term 'priss' is almost always used mockingly, showing how societies punish people for being 'too proper'—yet we also mock those considered too wild, meaning nobody wins.
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