Used to refer to a piece of cloth or rag, often in a derogatory sense.
El regajo de tela que usó para la manualidad le dio un toque especial al proyecto.
The scrap of fabric she used for the craft added a special touch to the project.
El regajo de tela que usó era de un color vibrante y alegre.
The piece of cloth she used was of a vibrant and cheerful color.