loss n. 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.