What in the world is Bunko?

Tonight, my wife is hosting a neighborhood Bunko game. She's scared. I'm scared. Can anyone tell me just what in the world this phenomenon is exactly?

UPDATE: 7:28pm - Apparently it involves a bunch of ladies sitting around tables rolling dice and then writing something down on small pieces of paper.

UPDATE: 8:30pm - We've reached the husband talk stage. My husband this and my husband that. Can you believe he would do that? I wanted to strangle him.

UPDATE: 9:03pm - I'm sitting in the other room, and I kid ye nay, I just heard a woman say, "I asked for an enema. I really didn't want to have an unexpected bowel movement." The other women quickly offered comfort. "Oh, I know" and "Yeah, yeah."

UPDATE: 9:30pm - Still rolling dice. Still dissing husbands. Still writing secret scribblings down on paper. Still not wanting unexpected bowel movements.

UPDATE: 9:45pm - I'm going to call it a night. The sooner I fall asleep, the sooner I wake up and discover the house is mine again. I sure hope I don't find an unexpected bowel movement. "OH BUNKO!"

BONUS UPDATE: 9:47pm - I was about to walk up the stairs and I heard the following, "If the Blue Boutique sees me coming, they lock the doors!" Awkward laugher immediately followed. (For those of you who aren't from SLC, the Blue Boutique is an adult novelty store.)