'mop up' definitions:

Definition of 'mop up'

(from WordNet)
noun
A concluding action [syn: completion, culmination, closing, windup, mop up]
verb
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 up, mop]
verb
Defeat thoroughly; "He mopped up the floor with his opponents" [syn: worst, pip, mop up, whip, rack up]
verb
Finish a task completely; "I finally got through this homework assignment" [syn: get through, wrap up, finish off, mop up, polish off, clear up, finish up]