My first eslint rule 'no-f-word'. This rule prohibits literal including F word.

no-f-word.js

module.exports = context => {
  return {
    Literal: (node) => {
      if(node.value.match(/fuck/)) {
        context.report({
          node,
          message: 'Don\'t use the F word!'
        })
      }
    }
  }
}