We found one dictionary that defines the word as smart/pretty/mean etc. as the dickens:

General (1 matching dictionary)

▸ Words similar to as smart/pretty/mean etc. as the dickens ▸ Usage examples for as smart/pretty/mean etc. as the dickens ▸ Idioms related to as smart/pretty/mean etc. as the dickens ▸ Wikipedia articles (New!) ▸ Words that often appear near as smart/pretty/mean etc. as the dickens ▸ Rhymes of as smart/pretty/mean etc. as the dickens ▸ Invented words related to as smart/pretty/mean etc. as the dickens