Halal turkey is meat from a turkey that has been raised and slaughtered in accordance with Islamic principles. The word "halal" means "permissible" in Arabic, notes The Kitchn.
In order to be classed as halal, a turkey must have been raised on a natural diet with no animal by-products. It must also have been killed under certain conditions. The name of God (Allah) must be said during slaughter. The turkey must be conscious at the time. A Muslim, Christian or Jew must carry out the slaughter, which should be done with a sharp knife to cut the turkey's throat. The turkey must then be hung upside-down and allowed to bleed dry.