A co-worker gets daily emails from Urban Dictionary. A few days ago the word of the day was nonversation. What a delightful and thoroughly useful word! I used it yesterday - "Ugh. Can we NOT have this nonversation right now?"

Nonversation -
A completely worthless conversation, wherein nothing is illuminated, explained or otherwise elaborated upon. Typically occurs at parties, bars or other events where meaningful conversation is nearly impossible.
Smith: What a waste of time it is talking to that guy.
Jones: I know, every time I do, it's like a complete nonversation.