A nice way to explain to others that you were getting in on.
Karen: I tried to return your call this afternoon, but you didn't answer!
Jane: Oh sorry, I was in the Pleasure Dome all afternoon!
Karen: High five!
A way to refer to sex for those times when you don't want to say I was having sex.
"Hey I saw that you called this afternoon and I called you right back."
"Oh sorry, I was in the pleasure dome!"