expression, noun which may take the genitive case particle 'no', noun
overflowing with charm; full of smiles
Describes a person, expression, or manner that is charming, amiable, and often smiling. Used as a noun or adjectivally with の.
Everyone was warmed by her charming, smile-filled face.
That child is overflowing with charm and is liked by everyone.
Compound of 愛嬌 (charm, amiability) and たっぷり (plentifully).