Affectedly dainty behaviour, primness: Speaking in a prissy manner, usually with pursed lips.
First used in the mid eighteenth century and attributed to David Garrick (1717–1779), actor and playwright mimping has fallen out of use and is now considered archaic.
“To watch them mimping about you’d never believe these were accomplished boxers.”
“His mimping overwhelms anything the man has to say; I cannot help but compare his mouth to a cat’s behind.”
Pompous or extravagant in language, style, or manner, especially in a way that is intended to impress.
Late 16th century: from Latin grandiloquus, literally ‘grand-speaking’, from grandis ‘grand’ + loqui ‘speak’. The ending was altered in English by association with eloquent.