Affectedly delicate or refined; mincing.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "niminy-piminy" in a sentence
"And, in case you think I am sounding too niminy-piminy here, a third tucking into his 'Double Bubble, two slice and a cup a tea please love' while enjoying the special delights of The Sun."
"I don't think we need have any niminy-piminy fancies against that."
"These fashion-plates of fifty years ago are designed by very different hands from those which produce our niminy-piminy looking things, -- by artists plainly; and your peasant-girl was seized upon by some errant knight of palette and brush, and painted for her beauty."