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)