to do things half-heartedly; to muddle through a task just to get it over with; to be perfunctory in one's work

To rush through a task or get through something carelessly; to finish a job in a perfunctory manner.

to leave a matter unfinished; an unresolved or unsettled matter

Used to indicate that something bad or unexpected has happened, such as an accident or trouble.

to do something half-heartedly just to get it over with or fulfill a requirement