A DECA doll face or DDF refers to the best type of DECA girl you could ever meet. She is amazing, witty, beautiful and hillarious. This type of women is very prominent in the business world and sets high standards for herself. She'll probably be your boss someday.
the best type of DECA girl you could ever meet; not a DECA slut
DDF is a look on the face similar to RBF but with an added rancid, un-groomed taste of a dirty, bitter possibly un-cut dick lingering on the taste buds.