second office 

Where you are when answering cell phone call in the bathroom at work. A distinct 'echo' can be heard by the caller that gives away that you're sitting in a bathroom stall. This term is more appropriate,...and funnier, than telling the caller that you are sitting on the toilet.

"Hi Celeste, how are you?"
"I'm sitting here working in my second office."

second office by Brian Bates April 3, 2008