* Simple: The child's drawing was smudged with a messy finger.
* Descriptive: The lipstick on her glass left a smudged red mark that was difficult to wipe away.
* Figurative: His memory of that day was smudged, the details fading with time.
* With action: He smudged the ink with his thumb, trying to erase the mistake.
* In a story: The old photograph was smudged with age, the faces barely recognizable.
As you can see, "smudged" can be used to describe a variety of things, from physical marks to memories and even emotions. The context will determine the specific meaning.