Sweat Box
1. “Sweat box” is the animation industry’s equivalent to rushes, or dailies. Nowadays, when an animated scene has been approved by the animation lead, it is sent to the edit suite. The editor inserts the scene into the reel for viewing in context with other scenes. The director views the reel and calls for changes or approves the scenes…a sweat box session will typically be attended by producers, production staff and department heads. Quite often the animator responsible for a scene may be called into the meeting to take specific instructions from the director on the changes to be made.
Source: Wikipedia