polish off

US /ˈpɑːl.ɪʃ ɑːf/
UK /ˈpɑːl.ɪʃ ɑːf/
"polish off" picture
1.

to finish something completely, especially food or drink

:
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He managed to polish off the entire pizza by himself.
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Let's polish off the rest of the cake.
:
finish offconsumedevourgobble upwolf down
2.

to defeat or kill someone or something quickly and easily

:
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The champion boxer managed to polish off his opponent in the first round.
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The new software will polish off any remaining bugs.
:
defeatovercomeeliminatedestroyvanquish
:
polishnail polishpolish upoffoff and onswitch offtake off