DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Mop \Mop\, v. t. [imp. & p. p. Mopped; p. pr. & vb. n.
      Mopping.]
      To rub or wipe with a mop, or as with a mop; as, to mop a
      floor; to mop one's face with a handkerchief.
      [1913 Webster]