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)