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See also: lockin and lock in



lock-in ‎(plural lock-ins)

  1. A sleepover party, usually held in a public place such as a church or school, in which the participants are not allowed to leave until the next morning.
    The youth group will have their annual lock-in this weekend.
  2. (Britain) An illegal but widely-tolerated invitation-only gathering in a British pub, after the end of licensing hours, to allow regular customers the opportunity to enjoy further drinking time.
    • 2009, Annette J. Dunlea, Always and Forever (page 53)
      He was a lunatic drunk and started sing songs that lasted into the early hours of the morning and resulted in many weekend lock-ins in the village pub.
  3. (law) A situation in which members of an industry have agreed to adopt a certain standard and have retooled their production to meet this standard, thus making it very costly to change to a different standard.