This means getting back into a good and healthy routine that you've gotten yourself out of for a while; taking back a healthy habit or activity.. the meaning usually is referring to something positive, or upbeat!
I've been lacking exercise lately, and today I went running! I'm gettin' my game on!

I've been eating like crap lately, and today I had a large salad for lunch! I'm gettin' my game on!

I've been such a slacker around the house lately, and today I decided to clean out the garage! I'm gettin' my game on!
by UniversalGirl June 30, 2011
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