Noun. 1. The little metal piece situated
in the middle of the
spinning wheel on a lighter that people mistakenly refer to as "that child safety thing." 2. The piece that is usually removed by dedicated smokers to facilitate the use of the lighter, which adds to the thumb's grip and uses less pressure to
spin the wheel and create a flame.
Can usually be removed using a knife, key, fork, tweezers, or any other thin metal tool.