A couch potato is someone who never gets up off of the sofa they will sit there all day long and do absolutely nothing someone who sits on the couch all day is not necessarily fat often couch potato's are skinny and can eat like a horse without putting on any weight.
Girl: Connor is such a couch potato.
Guy: I know he never gets up off the sofa.
a normal person, with a job and a career, socially awkwardoutside their work environment, who may be using the "excessive TV watching" in order to manage their depression or social anxiety
many people jump the gun and label each and every couch-potato they encounter as a lazy and unproductive member of society; however, a couch-potato may indeed be be a very functional, non-lazy person, but still watch excessive amounts of TV as an alternative to drugs and medication when dealing with their depression or social anxiety
A person who advocates involvement in military or stratigic policy on a 9 or 10 scale, when in their own life, have never, or will have never been at that level of the identical risk.
Rush Limbaugh and Dick Cheney clearly define the couch potatowarrior, as opposed to say, Colin Powell.