Dee Doodily Doo

My diode has detected the letter D
Deploy data
D D D D D Dee Doodley doo
Dee Doodily doo
D D D D D Dee Doodley doo
Dee Doodily doo
D D D D D Dee Doodley doo
Dentists and doctors and deliverymen
They all begin with D
D is dependable and D is indispensable
Just delve into your dictionary
Do you dare to draw a donkey driving a dump truck
Donuts are delightful
I do not disagree
Dee
Doodley
Doo