Meaning 1 ►▼
to begin to understand something, to be actively involved
You'll get into the swing of things soon. You've only been here a month.
Meaning 2 ►▼
to be actively involved
The president of the corporation told his financial officer that he was doing well; he was getting into the swing of things.
This idiom refers primarily to the word "swing" as an action and not to a specific sports term.