The oddly lacking-a-"t" official spelling of the word pronounced "cuzint" by members of communities in which nearly *everyone* is "cuzints" with nearly everyone else.
Anyone who isn't related to you, but you want to claim they are to get them a discount that only works for family.
At AMC Theaters, so many of the employees kept saying that they were bringing their "cousin" when it clearly was just a friend to get the "free tickets for family" so they said "no cousins" in the policy.