1.a patch, splash, or smear of a semiliquid substance applied to something in a crude, hurried, or irregular way
2.a painting that is considered to be crudely or inexpertly done
3.a mixture of clay, lime, and chopped straw plastered onto interwoven rods or twigs to make a wall.
4.a small amount of a wet substance spread on a surface in a careless way
5.a mixture of wet clay and strawdried plant stems, used for making walls, especially in the past
6.a picture painted without skill