What is "grubbily"

Usage examples of "grubbily".

Flanking the wide avenue, the pink-bricked blocks of apartment were grubbily washed by the sodium flares.

You might try the effect of dressing even more grubbily and behaving even more vilely.

There he engaged in a brief brisk scuffle with some unknown person and emerged a moment later dragging behind him a scrawny small boy, rather grubbily attired as a page in soiled silks and rubbed velvets.