waste of biomass
A term used to refer to someone who is so stupid and pointless that their existance is a waste. It literally means that the organic matter that makes up their body could have ben put to -much- better use, such as maybe making a few cats, or some bugs, or even a few trillion bacteria, all of which would be more beneficial to the earth than the sorry excuse for a human being referred to.
Most of the kids at my school are nothing but big wastes of biomass.