do a good, bad, etc. job

do a bad job

To perform a task poorly. I sure did a bad job of parking the car—I doubt I could get any further away from the curb. Please paint carefully. If you do a bad job, you'll be stuck with it.
See also: bad, job

do a good job

To perform a task well. I must have done a good job on my research paper because I got an A+! Please go clean your room. If you do a good job, you can stay up extra late tonight.
See also: good, job
Farlex Dictionary of Idioms.

do a good, bad, etc. ˈjob (on something)

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make a good, bad, etc. job of something

do something well, badly, etc: They did a very professional job. You’ve certainly made an excellent job of the kitchen (= for example, painting it).
See also: job
Farlex Partner Idioms Dictionary
See also:
  • do a bad job
  • don't bring a knife to a gunfight
  • bad workers always blame their tools
  • usually
  • be in bad shape
  • have a bad night
  • have a good/bad night
  • give a bad account of (oneself)
  • make bad weather of it
  • gunfight