spackle

Any powder (originally containing gypsum plaster and glue) that when mixed with water forms a plastic paste, which is used to fill cracks and holes in plaster.

A plastic paste meant for filling cracks and holes in plaster.

A paste-like substance that fills a gap.

To fill or repair with a plastic paste.

To fill cracks or holes with a spackle.

To fill gaps with something, as if spackling; to speckle