he's a know-all

  • 21(a) know-all — British & Australian, American & Australian someone who seems to know everything and annoys other people by showing how clever they are. No one likes him because he s such a know all …

    New idioms dictionary

  • 22Mr Know-All (Tales of the Unexpected episode) — Mr Know All is an episode in the British TV series Tales of the Unexpected; this episode set in the Virgin Islands.ynopsisA pretty medical student, Elly Somerton, is working as a hotel chambermaid and falls for a guest at the hotel, Professor Max …

    Wikipedia

  • 23know all men — A form of public address, of great antiquity, and with which many written instruments, such as bonds, letters of attorney, etc., still commence …

    Black's law dictionary

  • 24know all men — A form of public address, of great antiquity, and with which many written instruments, such as bonds, letters of attorney, etc., still commence …

    Black's law dictionary

  • 25know-all —    See clever …

    A dictionary of epithets and terms of address

  • 26know-it-all — know it alls N COUNT (disapproval) If you say that someone is a know it all, you are critical of them because they think that they know a lot more than other people. [AM, INFORMAL] (in BRIT, use know all) …

    English dictionary

  • 27Know-it-all — n. One who knows everything; hence, a person who makes pretension to great knowledge, especially one whose didactic conversational habit conspicuously reveals his belief that he has superior knowledge on many subjects; a wiseacre; a know all; us …

    The Collaborative International Dictionary of English

  • 28Know-it-all — or know all is an epithet applied to any person who exhibits the belief that he or she possesses a superior intellect and wealth of knowledge, and shows a determination to demonstrate his perceived superiority at every opportunity. ee also* Whiz… …

    Wikipedia

  • 29know-it-all — n informal especially AmE someone who behaves as if they know everything used to show disapproval British Equivalent: know all …

    Dictionary of contemporary English

  • 30all work and no play makes Jack a dull boy — all work and no play (makes Jack a dull boy) it is not good to work all the time. You need to get out and have fun you know, all work and no play …

    New idioms dictionary