1. 污迹;污点
A smudge is a dirty mark.

2. 使模糊不清;弄花
If you smudge a substance such as ink, paint, or make-up that has been put on a surface, you make it less neat by touching or rubbing it.

3. 弄脏;涂污
If you smudge a surface, you make it dirty by touching it and leaving a substance on it.

1. a blemish made by dirt

e.g. he had a smudge on his cheek

Synonym: spotblotdaubsmearsmirchslur

2. a smoky fire to drive away insects