someone so completely lazy or useless that their only effect on this earth is to use up oxygen that could otherwisehave been consumed by someone who doesn't deserve a solid kick up the arse.
i work with an oxygen thief. she brings a pillow and blanket to work and sleeps through night shift.
An individual who is so stupid, ignorant and inept that their breathing and existence in any environment or location should be considered a crime due to their inhalation of oxygen that would be better utilized by others.
A living human who continues to waste valuable oxygen that many feel would be best preserved for other uses. The oxygen is predominantly wasted through the beings ineffective contribution to society leading many to question their existence on the planet.
"Jim, who is this big-titted mongloid on the front on the newspaper?"
One who leeches off other people, scrounges off their parents, annoys everyone they come into contact with, refuses to work, stays in bed until mid afternoon most days and wastes what money they do have on gambling machines and often has a lazy eye. Otherwise known as a parasite