What is to apply a brush to, according to its particular use; to rub, smooth, clean, paint, etc., with a brush. "A' brushes his hat o' mornings." Shak called?

brush — To apply a brush to, according to its particular use; to rub, smooth, clean, paint, etc., with a brush. "A' brushes his hat o' mornings." Shak. (Webster's 1913.)