Call the authorities and find yourself a new flatmate. If that one is older than two years old, he/she has serious mental issues that you don't want to trouble yourself with.
The best way to find a trustworthy flatmate is through common friends. This way, both persons will know from the start the personality of the flatmate.
The Abominable Flatmate - 2008 is rated/received certificates of: Australia:G
shave it off
hit them
How to stop biting my nails
It means to stop biting your fingernails. "Monkey on your back" is a slang term for any addiction or very bad habit. They are telling you you must get over your bad habit and stop biting your fingernails.
Other answers:Joke: How can you stop a monster from biting his nails?Punchline: Buy him a bag of screws.Joke: How can you stop a monster from biting his nails?Punchline: Send him to a Monster Reform School.
knock her teeth out
How to stop biting my nails
separate them
No it is very hard.
its hungry