A "bad roommate" refers to someone who is difficult to live with because of their behavior, lack of consideration, or irresponsibility. They may cause problems or make your living situation uncomfortable or unpleasant. Full definition
If you are wondering how to deal with bad roommates, be aware that getting rid of them legally is challenging if they are listed on the lease. (zillow.com)
It's a great way to split the cost of living and, unless you have a particularly bad roommate, a good way to spend your time. (thezebra.com)
BAD ROOMMATE By suggesting that babies age 6 months and older may sleep longer when in their own bedrooms, a new study provides ammunition to parents who want their room back to themselves after the first six months. (sciencenews.org)