After a while, she 'got into the swing of' her job. [=she got used to her job and was able to do it well]
They have to be ready to 'swing into action' [=to start doing something quickly] at a moment's notice.
She needs to work on her (golf) 'swing'. [=she needs to practice the way she swings a golf club]
(..) Go ahead. Put me out of my misery. It was just a joke. If I hear any more shit about aspirins... or one more of your fucking mood swings, I'm going to tickle you to death. Do you understand me? - Yes, ma'am. - Hey, come here. - Hello? (..)1996 Foxfire