Abbreviation for DUMB NIGGA INTELLIGENCE. The type of mindset someone has when they say something stupid but smart at the same time, a dumb phrase that has a smart concept.
A deviantart chat, DNI is an acronym for Death Note Interview, based on the popular series Death Note. Characters from the series (popularly refered to as DNG's in the chat) pop in every now and then to participate in the DNI environment. In DNI general hilarity ensues with little to no instigation. Such instances have included random chatters getting shot, sajoku'd, or one of thefluffyshrimp's 'tea parties'. These Tea Parties usually involve rum-laced tea and the DNG's partaking in it. Then Drunken Randomness ensues, and many times durring the chat a noob will get raeped by Rinnian.
All in all, quite fun.
An acronym for "Do Not Interact". Typically used when addressing someone or a group of people that you do not want to interact with whatever you're saying/doing.
A DNI (Do not interact) list that you can play bingo with it because it is so long that it disqualifies almost everyone from interacting with the person who made it. The term/game is most popular on stan twitters.