polish off

definition: finish a task completely
example: We polished of that whiskey faster than I thought we would.
speech part: verb
synonyms: mop up
definition: finish eating all the food on one's plate or on the table
example: They polished off a five pound schnitzel.
speech part: verb
synonyms: finish
definition: kill intentionally and with premeditation
example: The gangsters polished off the competition.
speech part: verb
synonyms: hit

How polish off is being used?