Stacked upon each other, The Balls and Sacks have the appearance of a stack o’ pancakes, with the females (or participants) face as the plate.
The "Plate" participant is referred to as the plate partner or "Plate".
The other participants are referred to as "The Stacks", or stack 1, stack 2, stack 3...
The Single Stack. consisting of One Plate partner and one male with a pair of Balls. Technically Not Pancaking But acceptable for the Novice or First timer.
The Double Upper (or Double Stack). Consisting of One Plate partner and Two additional Male partners with at least 3 balls total, amongst 2 separate scrotums or ball sacks. (normally 4).
The Trio (or triple stack). The True Pancakeing Pancake. Consists of One "Plate" partner and the Addition of 3 Male Partners totaling an average of 6 balls stacked regularly. Exception: With at least 3 balls total amongst three (3 separate scrotums or ball sacks). this would be uncommon to the normal pancaking, but acceptable. as most sacks contain 2 balls...This may be referred to as the Triple Single. More of a found fetish version of "Pancakeing"