A person who fails miserable at every major aspect of life, such as marrige, rasing a family, career, finances, ect. This person is usually full of advice which you should never take, and will try and belittle everything you do.
Dan: "I stopped over at Tony's house last night, what a suprise.
Dan: "awww, his house looked like a club house, his kids were running around screaming, his wife was a fatass wreck laying on the couch doing nothing, plus he told me he lost his job again and has no money. Then he tries to tell me how I need to paint my house and get a new car"
Al: " he's a real life loser huh?"