Definition
The stall count is the verbal count from 1 to 10 that the marker applies to the Active Handler. If the count reaches 10 with the disc still in the thrower's hand, the disc is turned over (a stall). The count is the defensive clock — it is the rule that turns a held disc into a turnover.
In Context
The stall count is the explicit version of a deeper truth: time on the disc costs you. Even before the mark reaches 10, every second adds defensive shape — recovery, sliding, downfield rotation. Our 2 Second Window is the version we coach to, because by the time the count is at 4 the picture has already changed for the worse.
Drills like 4 Second Game and the stall constraints in Small Box use a shortened count to make the cost of holding visible. A player who hesitates at stall 2 in those drills is the same player who hesitates at stall 7 in a game; the constraint just shows it earlier.
A stall-out is rarely a mark winning — it is usually a thrower who never committed inside the window. See Move The Disc - Coaches Notes for how to coach the difference.