Utterance used in answer to questions when one is in the confused mental state experienced immediately after waking, or when too tired or otherwise mentally incapacitated to deal with any complex thought process. Can also be used when simply not understanding a complex question or not knowing an answer to a complex question. Originally intended for IRC or IM use, but can be used vocally.
A word with unique meaning depending on the user. Closest synonym: nonsense. Could also symbolize a "shrug." The neutral word is neither positive nor negative.