Short for "Mutually Exclusive Sexual Partner." You're not dating, you're not sleeping around. Similar to "Fuck Buddy."
When you only have one sex partner, but they are not your boyfriend/girlfriend.

Running for exercise and picking up trash you find along the way. It's good for the body, mind, soul, and environment! Started in Sweden but is making its way to the U. S.

long haired drug addict who appreciates good hifi

A twnety something that likes to booze heavilly