Noun - (To) take the Hobbits to Isenguard means either
1) To take a shit in a toilet
2) To make love, get laid. Usually, vaginal intercourse is the main method of penetration while taking the hobbits to Isenguard. The love-making session is usually sustained over a longer period of time.
"Awh, man, BRB, I'm going to take the hobbits to Isenguard."
Sam: "What are you doing this evening, Gerry?"
Gerry: "I'm going to take the hobbits to Isenguard tonight with Cass."