It can mean many things, but over all it's a commitment to bodybuilding, nutrition and fitness that you take with you everyday of your life. One that MOST people don't have. To some that are luck enough to make a living from it, they train and eat all day and have sponsorship deals with commitments they have to fulfill. Others (like most of us) hold down full time jobs, bring all their food with them to work instead of eating out like everybody else, they rather sleep to build muscle than go out partying or will stick with the water over the beer. Some may even call them anti social (but those people aren't usually JACKED VASCULAR and RIPPED). I think you'll like the bodybuilding lifestyle. Watch Pumping Iron with Arnold. That'll give you a glimpse into the lifestyle. It's a Wonderful life, welcome to it!