When a person insists on having a long, drawn out, pointless conversation on their cell phone when going to the bathroom, especially if it is a public bathroom.
"Dude, is there another bathroom here?"
"There's some asshole in there talking on his cell phone and I just couldn't take a leak."
"Bathroom blather is so fucking rude."
When I heard I toilet flush I knew that this conversation was just bathroom blather.