It's not polite to lick your plate

All words relate to the concept of 'It's not polite to lick your plate'

Think about what these words have in common

Look for the Spangram - it often reveals the theme

Theme words range from 9 to 11 letters long

Several words share similar endings

Watch for words starting with D, F

One word: D______ (10 letters, starts with 'D')

Another word: D______ (9 letters)

Also look for: F______ (9 letters)