What is "flossed"

Usage examples of "flossed".

She peeled it over her head and stood naked, with her small breasts outthrust, narrow hips square and bonily dimpled, genitals flossed in feathery brown.

Then she got out, brushed her teeth and flossed them, and brushed her hair.

Then I squeeze Rembrandt onto a faux‑tortoiseshell toothbrush and start brushing my teeth (too hung over to floss properly – but maybe I flossed before bed last night?

She was playful and full of laughter, she teased her children and hugged them, she ate a chocolate-marshmallow sundae, and she brushed and flossed afterward.