My Fit Bit

Got me a Fit Bit,
Keep me a Bit Fit,
Make sure don’t Sit,
Like sorry Nitwit,
Who’s prone to Flit,
To foods that Hit,
My gut’s Cockpit,
Pants that could Split,
Even though Double Knit,
Yet still Permit,
Jewels that make It,
Outside slight Slit,
Can’t really Omit
That I’d Commit,
To try Refit,
Scene that’s Unfit,
Shock I Transmit,
Like a Dimwit,
Don’t raise a Fit,
Advice Tidbit,
Quick cover must Git,
Or brave Deep S—t!