Gobelin stitch is a slanting stitch used in needlepoint. Gobelin stitch takes its name from its resemblance to the texture of woven tapestries produced by the famous French factory at Gobelins.[1]
According to Thérèse de Dilmont in the Encyclopedia of Needlework:
This is worked over two horizontal threads and one perpendicular. In a frame, you can work the second row, from right to left, otherwise, you must turn the work round, and bring out your needle behind the last-made stitch.[2]