daub

(noun) material used to daub walls.

(noun) a blemish made by dirt. Synonyms: smudge, spot, blot, smear, smirch, slur. Example: "He had a smudge on his cheek."

(noun) an unskillful painting.

(verb) coat with plaster. Synonyms: plaster. Example: "Daub the wall."

(verb) apply to a surface. Example: "Daub paint onto the wall."

(verb) cover (a surface) by smearing (a substance) over it. Synonyms: smear. Examples: "Smear the wall with paint." "Daub the ceiling with plaster."