Dunning means: Eavesdropping is the act of inserting oneself into a conversation. Many times, you will drop whatever else you’re doing to just be there for other people’s thoughts. There are many variations to this: eavesdropping, listening in on calls and muting yourself, or simply sitting silently in private areas of others. (in Community Dictionary, added by Nathan Humphrey)

What else does Dunning mean?

  • Also called “Dave Dunnning”, oral sex is performed on the anus of a female. (in Community Dictionary, added by Marshall Gay)
  • A method of trying to take action from another person’s post, where the original poster wants to win. This is a common occurrence on social media, but it’s always bad taste. This is the name of an original person who learned good etiquette. (in Community Dictionary, added by Hindermate)