"topped off with" is a correct phrase in written English and it can be used to mean "completed" or "finished".
For example, "The meal was delicious, topped off with a homemade chocolate cake for dessert."
THE Rhode Island statehouse is topped off with a large bronze statue called "the independent man".
They are works of art, topped off with a stick of celery filled with wholegrain mustard.
The northern tower, never completed, was topped off with a Renaissance dome between 1556 and 1587.
The whole thing was then topped off with a layer of pentacene.
57 goals in 57 appearances topped off with just 17 assists.
Gourcuff has illuminated this season with brilliant performances topped off with many crucial, and spectacular, goals.
At least his was: a beautiful leather flying jacket, topped off with a white silk scarf.
It was topped off with an army-meets-baseball cap and spike-heel ankle boots.
Each outfit was topped off with an equally ostentatious swing coat and bubble-bob brown wig.
All this is topped off with a pair of outsize Maxxis Ardent tyres.
MRCH make glossy electronic pop with shiny synths and growling bass, topped off with breathy vocals.
