nuff

adjective
  1. Informal spelling of 'enough'; sufficient or adequate in amount or degree.
  2. Usage: informal; nonstandard spelling; common in casual speech and text messaging
interjection
  1. Used to express that something is sufficient or that one should stop; an emphatic way of saying 'enough.'
  2. Usage: informal; nonstandard spelling; often used to signal agreement or to end a discussion

Examples