In the good old days of steam radar there wqas a tracker who kept a dot on an aircraft and drovi it around keeping it as close as possible to the blip. These were called "store dots" (I suppose 'cos the track was stored on the system or something, never did ask why).
One particularly busy period at Eastern Radar, we had allocated every track available. Someone sent the "New Boy" down to airworks to get them to open another box of "Store dots".
Oh how we laughed, simple folk, us Air Traffikkers".
Doc C