1. in a way that is dirty or covered with soot or grime
2. in an indecent or obscene manner
Usage: informal

Examples

• The chimney sweep emerged smuttily from the fireplace.
• His clothes were smuttily stained after working in the coal mine.
• The comedian spoke smuttily, making the audience uncomfortable.
• She wiped her smuttily blackened hands on a towel.
• The old factory windows were smuttily coated with years of soot.
• He grinned smuttily at his own inappropriate joke.