A container (1) for holding a fluid comprising: a fluid chamber (2) having an inner wall (3); an outlet-opening (14); and a high pressure chamber (4) for driving the fluid towards the outlet-opening; wherein the container further comprises as at least part of a divider between the high pressure chamber and the fluid chamber a moveable element (5) for advancing in a predetermined direction of motion through the container from a first position to a second position for reducing a volume of the fluid chamber when fluid is dispensed via the outlet-opening, wherein a first and a second cross section of the fluid chamber taken transverse the direction of motion at respectively the first and second position have different dimensions.