From Longman Dictionary of Contemporary Englishprissypris‧sy /ˈprɪsi/ adjective informal OFFENDbehaving very correctly and easily shocked by anything rude – used to show disapproval —prissily adverb —prissiness noun [uncountable]
Examples from the Corpus
prissy• She always irritated me - she was so prissy.• a look of prissy disapproval• Stepan Verkhovensky is prissy, frenchified, very feminine though not at all homosexual.• To argue would be prissy, he decided.• I suppose if Rupert had not been a bear he might have been considered prissy, like Noddy.• Art Lux and Vinny Pearson, the newspapers, the party bigwigs, the whole prissy state of Minnesota.Origin prissy (1800-1900) Probably from prim + sissy 