lossy

   [Usenet]

   1.  Said of people, this indicates a poor memory, usually short-term.
   This usage is analogical to the same term applied to data compression
   and  analysis. "He's very lossy." means that you can't rely on him to
   accurately remember recent experiences or conversations, or requests.
   Not  to  be  confused  with  a `loser', which is a person who is in a
   continual state of lossiness, as in sense 2 (see below).

   2.  Said  of  an  attitude  or  a situation, this indicates a general
   downturn  in  emotions,  lack of success in attempted endeavors, etc.
   Eg, "I'm having a lossy day today." means that the speaker has `lost'
   or  is  `losing' in all of their activities, and that this is causing
   some increase in negative emotions.

[glossary]