Question

fill out

Accepted Answer

1 to
  (cause to) become rounder or fatter: she used to be very thin but she has
  filled out a bit now. Her face has filled out since I last saw her. Eating at
  that food will certainly fill her out . 2 to fill in (forms etc): I'm tired
  of filling out forms.

Fill Filled Rounder Fatter Thin Bit Face I