My son, when working 4H for the local county fair, picked up this phrase ( with rural inflection) as
"Git'er done!" from the Fair Maintenance Supervisor, who apparently said this all the time to the crew of teenaged maintenance('cleanup') staff my son was a member of. In this case the tasks involved little thinking, but constant roaming the Fair picking up trash and emptying trash cans and doing other odd jobs. Not the most glorious thing to be doing, but for a teenager, the pay was good and the work not too hard.
He did so well at the tasks thrown at him (move picnic tables, help with stage setup,etc.) that to this day, five years later, every time I am at the Fair grounds someone asks how Spencer is.
He got the job done when asked. Nothing difficult or hard or skilled, just summer work a teenager needs to experience life. I hope it serves him well later in life.