Reverse Dictionary: KNOW-IT-ALL

NOUNS – PERSON
► ABERCROMBIE a know-it-all; one who strives at creating the impression of knowing all → 1945 jive usage (Bk.)
► ADMIRAL’S MATE a boasting know-all → 1913 Amer. Navy usage (Bk.)
► BAKING POWDER MAN a know-it-all; a bluffer → 1933 African-American sl.
► BARRACK-ROOM LAWYER an opinionated but well-informed know-all → 1982 euphemism 
► EYEBALL a know-it-all; a person who is disliked because he thinks he knows everything → 1966 Amer. dial.
► FLASH a know-all  → 1978 UK detention centre sl.
► JACK STROP’S OLD WOMAN a dogmatic know-all → L19 sl. 
► SMART ALEC ► SMART ALECK ► SMART ALICK ► SMART ELICK a know-it-all; a person who is, or wishes to seem clever and knowing, but is regarded as annoyingly smug or obnoxious → 1864 colloq., orig. US
► SMART-ARSE ► SMART-ASS a know-all → 1965 sl., derogatory
► SMART-BUTT a know-it-all; a person who is disliked because he thinks he knows everything → 1967 Amer. dial.
► SMARTIE-BOOTS ► SMARTY-BOOTS a know-it-all; an overly or obnoxiously clever person → 1950 UK colloq.
► SMARTY-PANTS a know-it-all; an overly or obnoxiously clever person → 1935 colloq., orig. US
► WISE-ASS a know-all → 1971 US sl., derogatory
► WISE BOY a know-it-all; a person who is ostentatiously and smugly knowing; a smart alec → 1998 New York sl. (Bk.)
► WISE GUY a know-it-all; a person who is ostentatiously and smugly knowing; a smart alec → 1896 US sl.
► WISEHEIMER a know-all → 1904 US sl., derogatory
► WISENHEIMER a know-all → 1904 US sl., derogatory
► WITTY WIDGEON a know-it-all; a wiseacre → 1873 Eng. dial. (Bk.)