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Noun: A minchin - a person with an abnormally high level of confidence who lies or exaggerates about personal knowledge and experience in an attempt to belittle others and gain respect.

Verb: To minchin, minchinning - to lie or exaggerate about one's own knowledge and experience in an attempt to gain respect and come across with a higher social status than others.
"When I went to university, I was actually studying my BSc, MSc and PhD at Harvard, MIT and Oxford all at the same time. That was before I was employed by the CIA as a senior analyst, so you can understand why I'm frustrated at having to speak at such a small-time conference today."

"That guy is so totally minchinning. That's just ridiculous."
by myrightnut April 17, 2013
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