Third-person singular simple present indicative form of overfill.(verb)
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Use "overfills" in a sentence
"So naturally you give, and then you give some more, and then you give to the point of breaking, and then and only then it gives back, so bountifully it overfills not only your root cellar but also that parched and weedy little patch we call the soul."
"Like a three dimensional, media enhanced take-off of the game of "Telephone," Stephen G. Rhodes 'untitled installation overfills its host gallery, leaving barely enough room for visitors peering into his dramatically lit, cluttered construction to walk around and contemplate the chaotic set from a variety of vantage points."
"No need: as usual, the room fills, then overfills; latecomers perch on the windowsills."