One who sits in front of a computer every day, all day long, and weekends, too. A mousepotato is similar to but NOT a couch potato. He or she uses a mouse to navigate or control actions on a computer; however, this definition does not extend to using a computer to play games. A mousepotato is strictly defined as one who is dedicated to using a computer for the purposes of doing business online and excessively so.
My online business requires me to be a mousepotato.