toilet roll 
noun British
A roll of toilet paper.That's one of my pet peeves I'm afraid; the fact that I am constantly having to put a new toilet roll on to the toilet roll holder....
- For our agency away-day/team-building endeavor we were driven down to the New Forest somewhere near Southampton and given tents, bicycles and small brown paper bags with a toilet roll inside and a miniature of vodka.
- In the bathroom someone has artfully turned the paper hanging from the toilet roll into a piece of origami.