Verb
get something over with (third-person singular simple present gets something over with, present participle getting something over with, simple past got something over with, past participle (UK) got something over with or (US) gotten something over with)
(idiomatic) To proceed to do something as soon as possible, especially so as to have something unpleasant behind oneself.
I hate getting shots, but it's best just to get it over with.
2019, “7:One Bad Day”, in Marvel's The Punisher, season 2, 50 seconds from the start:Let's just get this over with. I'm sure we've all got things we'd rather be doing