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Use "toothbrushing" in a sentence
"It's a different feeling than regular toothbrushing, which is so vigorous."
"It's the toothbrushing bit that does me in, I think."
"Instead, he came upstairs while I bathed the boys—the fast bath, which meant they all stood in the tub while I soaped them, sprayed off the soap, dried them, and gave them each a star stamp on their separate Clean Guy charts, then did the hurry-up toothbrushing with all three around the sink at the same time, which got them another star stamp because they kept to the no-spitting-toothpaste-or-water-at-your-brothers rule."