Smudge
Part of speech: noun
Definition: A blemish; a smear. Dense smoke, such as that used for fumigation.
Part of speech: verb
Definition: To obscure by blurring; to smear. To soil or smear with dirt. To use dense smoke to protect from insects.
Daub
Part of speech: noun
Definition: A soft coating of mud, plaster etc.A crude or amateurish painting.
Part of speech: verb
Definition: To apply something to a surface in hasty or crude strokes.