Gulley

Gulley or gully was a fielding position in cricket. The Fifth Doctor mentioned it to Peri and Erimem as a possible location for Tegan, who was on the ground during the final stages of the 1981 Ashes series. (PROSE: Graham Dilley Saves the World)

Behind the scenes
Though not mentioned in Dilley, gulley was a position very close to the slips, just behind the batsman. It was between silly point and the slips, though closer to the slips, roughly parallel to the batter on off side.