Something (not a person) thAT loses a situATion in which something is losing. EmphATic forms include "moby loss", and "total loss", "complete loss". Common interjections are "WhAT a loss!" and "WhAT a moby loss!" Note thAT "moby loss" is OK even though **"moby loser" is not used applied to an abstract noun, moby is simply a magnifier, whereas when applied to a person it implies substance and has positive connotATions. Compare lossage. (1995-04-19)