From the Secret Mushroom Club Archive:

Excerpts from “Description of the Pluggers Ritual” originally documented for the SMCA.

“The oldest known ritual, which some believe actually predates simple ‘cockfighting’ itself is the Pluggers Ritual. 

In the vast majority of MCs, Pluggers are known to be the top of the food chain, so to speak. Their large, heavy, low-hanging testicles, referred to as ‘plugs’, afford them the highest level of rights and privileges. They are known to preen to an almost absurdly excessive level, tapping into the triggering primality of rampant genital display. The ‘swing and sway’ and play between testes and shaft being critical to evoking the tension between competition and deference at the core of MC rituals and culture.

MC lore and literature is riddled with pluggers, of varying shaft phenotypes, antagonizing rivals with their wild yet seemingly casual swings of the nuts and ‘sack dropping’, a practice in which junior MC members must lie still underneath a plugger while he repeatedly lifts and drops his plugs or otherwise smothers his rivals genitals. The Plugger’s intent is not to humiliate so much as revel in serious but good-natured performative dominance. Pluggers tend to be superior markers, coating their rivals at-will with high volume pumped through endless contractions unmatched by the most experienced Deans. During mounts, Pluggers are careful and deliberate in their pushes to maximize plug-to-plug impact, ensuring rivals feel the size and weight in comparison to their own.

…

“Hence the Pluggers Ritual, sometimes referred to as ‘sacknotting’, is one of special pride to the class as only those with the lowest, most nimble hangers can truly do it justice. During the ritual, two rivals are supported by their Anchors during the cockfight. Anchors kneel on all fours, rear-to-rear on a short platform high enough to elevate their posteriors to their Plugger’s groin. The Pluggers stand face-to-face and ‘plug’ their anchor who cinches his anus firmly around the plugger sack to prevent unintentional withdrawal. Pluggers then engage in the cockfight using various tactics to induce loss or surrender from their rival, the conditions being demonstration (ejaculation), defeat (loss of erection), or withdrawal (plugs exposed from anus).

…

“It is important to note that enlistment as an Anchor is completely voluntary and never subject to member influence.

…

“The victorious plugger will engage in a brief preen, typically highlighting the elasticity of his plugs and strength of his anchor by stretching upward as high as possible without withdrawing. He will then withdraw and drop his plugs onto his Anchor’s as a sign of appreciation. The Anchors then demonstrate on their respective Pluggers. Any other members in attendance will then demonstrate on the Plugger of their preference, irrespective of the winner, though winners typically are more popular unless the MC is divided sharply along classification lines. For example, Stingers are more likely to demonstrate on a Plugger with their own shaft phenotype.

…

“The Plugger appreciates pageantry and skill in equal measure. His cachet is the visual appeal of sex organs manipulated with the perfect balance of self-possession and nonchalance. Rivals’ attention to his tool is a matter of compulsive reverence in response to unbridled maleness. Pluggers’ saunter upon exit is unmistakeable as they revel in the saturation of their plugs with rival cum.”