Wiktionary
vb. (present participle of fill out English)
Usage examples of "filling out".
Blue applied the pseul doflesh to Bane's face, filling out his cheeks and chin, then did the same for himself.
And I'm a man who lies around the house scrounging a living by filling out Where Will the Little Green Man Be Next?
As the doctor sat filling out medical forms the Fox's voice could distantly be heard.
My mother and I were pros at filling out post office change of address cards, too.
She had changed over the years, growing stronger, more muscular, and filling out behind the saddle.
By the summer of '39, he was his old three-year-old self again, but in filling out his cheeks he had irrevocably demolished the last of Markus' drums.
The rear ranks of the cataphracts moved up, filling out the front line.