Source : WordNet®

mop up
     n : a concluding action [syn: {completion}, {culmination}, {closing},
          {windup}]
     v 1: to wash or wipe with or as if with a mop; "Mop the hallway
          now"; "He mopped her forehead with a towel" [syn: {wipe
          up}, {mop}]
     2: defeat thoroughly; "He mopped up the floor with his
        opponents" [syn: {worst}, {pip}, {whip}, {rack up}]
     3: finish a task completely; "I finally got through this
        homework assignment" [syn: {get through}, {wrap up}, {finish
        off}, {polish off}, {clear up}, {finish up}]