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)