Examples
Never rub your eyes with dirty hands.
Source: Tatoeba
Don't leave dirty pots and pans on the stove; wash them.
Source: Tatoeba
How many times do I have to ask you to put your laundry in the basket?
Source: Tatoeba
They shone like stars in the dark, dirty building.
Source: Tatoeba
"My feet aren't so dirty as yours!" "You'd be hard-pressed to call them clean, though!"
"My feet aren't so dirty as yours!" "But you can hardly call them clean!"
Source: Tatoeba