highfalutin
⇨ highfalutin; hifalutin
adjective absurdly pompous, snobbish. Probably an elaboration of 'high-flown' or similar; 'highfaluting' (the 'g' is optional) was originally hyphenated which lends strength to this etymology. Yiddish
hifelufelem (ostentatious, self-glorifying) is also possible
US, 1839