A roll of toilet paper:a jumbo pack of bog rolls[mass noun]:my flat is so expensive I can’t afford bog roll...
Rodger's wife disappears in disgust clutching a whole bog roll to her mouth.
Even after trying to remember everything, I forgot the bog rolls and kitchen paper!
Apart from the unfortunate incident in the Chinese restaurant, when the bog roll got jammed in the loo and banjaxed the whole system, a great time was had by all.