A sloth cloth is a slang word used to an old tee-shirt worn while hanging around your home.
It is also a tongue twister! Try saying repeatedly and fast.
“I knocked on my friends door and when he answered it I was shocked to see him wearing a food stained sloth cloth”
Be careful when studding English slang, using slang incorrectly can cause a lot of problems, always check slang with your native speaking professional English teacher at www.SmartLanguageSolutions.com