mop up

Short definition from Wiktionary

Verb

1. 1
   To clean up (liquid) with a mop, rag, sponge, or other cleaning device.
2. 2
   To fix problems; to correct or repair.
3. 3
   To absorb the leftovers of a dish with bread etc., in order to eat them.
4. 4
   To consume or get rid of an excess of something.
5. 5
   To clean up an area destroyed by a natural disaster or by violent activity.
6. 6
   To finish something off; to apply a finishing touch
7. 7
   To get rid of (enemies) within a certain area.
8. 8
   To win a competition decisively.
9. 9
   To pitch the final innings especially of a game that is no longer close.

Noun

1. 1
   An instance of mopping up; a cleaning or finishing off.
2. 2
   The cleanup of an area by removing burning material, felling dead trees, securing logs from moving, etc.