The term MEAN FELLOW can be broken down into two crossword solutions: OGRE (4 letters) and CUR (3 letters). An OGRE is a mythical creature typically depicted as a large, hideous, and monstrous humanoid. The word 'OGRE' is derived from the Latin Orcus, which means 'DEMON' or 'hellish giant'. A CUR is an inferior or mongrel dog, often used as a term of contempt for a person. The term is derived from the Latin word 'currus', meaning 'a chariot or cart'. Together, these two words describe someone who is mean, unpleasant, and contemptible.