1. A direct and immediate telephone linkup, especially between heads of government, as for use in a crisis.
  2. A telephone line that gives quick and direct access to a source of information or help: “This 24-hour hot line has . . . volunteers on duty to talk to callers about personal problems” (New York).

  3. American Heritige Dictionary

    Also: a ghetto source of imitation food & soylent green at the college I attend. Its hot. And most of the time, its crap, but its better than living off of snack machines and or attempting creative methods of suicide.