DCHP-2

snitch line DCHP-2 (July 2016)

• n. — informal, derogatory

  a telephone hotline that a person can call to report another person's rule-breaking or crimes.

  Type: 5. Frequency — The term is currently most prevalent in Canada (see Chart 1). It seems to have had currency in the US, as newspaper quotations from the late 1970s suggest. Given the current low frequency of the term in the US in Chart 1, the term is possibly also a Canadian preservation from American English.
  See also COD-2, s.v. "snitch line", which is marked "esp. Cdn".