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1.
noun: a toilet ghost is a whispy piece of tissue which fails to flush away first time. Post-flush inspection reveals the said ghost caught in the eddy of water. Not to be confused with a toilet demon
a little toilet ghost was left behind when she flushed the toilet.
by shez1 November 02, 2007
 
2.
The shit smell that hangs around in the bathroom after someone's taken a dump, even if they've flushed and deo'd the place. This could last for one hour.
Mom: "Whoo, this place smells bad! The toilet ghost must still be haunting this loo!"

Shaun: "Yesterday I took such a big dump that the toilet ghost didn't want to leave until the next morning."
by Beastly Cock June 02, 2009