Cleaning off surfaces, or cleaning away dust, dirt, or litter, as a broom does; moving with swiftness and force; carrying everything before it; including in its scope many persons or things; as, a sweeping flood; a sweeping majority; a sweeping accusation.

The action of moving a broom or brush back and forth in the path of a moving stone.

Using a brush to polish the ice in an effort to alter the action of the rock.

the act of cleaning with a broom

The unwanted "meshing" or "merging" of two images rather than a clean flip (which is the intended action.) back