damage

the cost

Example:

Ok, barman. What's the damage?

decent

good, very good

Example:

This is a decent office.

dig

understand

Example:

I dig you. Let's go eat.

dodge

a deception

Example:

Jim has a new dodge for making money.

doodad

a name for a gadget (gadget = a tool or device)

Example:

What are these little doodads?

doormat

weak person that is badly treated by others

Example:

Jim is a doormat. The boss gives him all the boring jobs but he never says anything.

dopey

stupid

Example:

That guy in the mail room is real dopey. He sent all the mail to Russia by mistake.

dork

a person who is strange

Jim is a real dork. He's always reading stuff about potatoes!

double cross

to do something that intentionally causes a problem for a colleague or friend

You double crossed me! You said you wouldn't tell the boss. Now I'm in real trouble.

dough

money

Example:

I've never got any dough at the end of the month.