In painting, "laying off" refers to the final step in applying paint to a surface, where the painter smooths out the paint to ensure an even, uniform finish without visible brush or roller marks. This is typically done after the paint has been applied with a brush or roller and while it is still wet.
After rolling paint onto a wall, a painter might "lay off" the surface by lightly brushing over the area in long, smooth strokes to blend the paint and create a professional-looking finish.
This technique is especially important in cutting in, gloss finishes, or large flat surfaces where imperfections are more noticeable.