~ D ~

Donkey work
Meaning: Less interesting or difficult parts of a job
Example: The boss is unfair and asks Mary to do all the donkey work .

Drag your heels
Meaning: To delay doing something or doing it slowly because you do not want to do it
Example: The manager is dragging his feet on the promotion issue of staff.

Drop the ball
Meaning: To make mistakes because of not doing the job seriously or doing something carelessly.
Example: Because Loletta drops the ball, so the whole project has to be postponed.