Say someone has a dirty kitchen, they fry food there with the windows shut and the oil from the food they fry stick to the windows. Now say you walk into this kitchen and you look at the windows.
How would you describe what you saw? The windows were greasy and dirty? Idioms are also welcomed.
(I have a hard time explaining things and describing situations sometimes, so whenever my mind blanks out and I feel difficulty explaining an issue I come on here and I try to figure out ways to say it better next time.)