While the primary match for the number "81" in this context is the statistical percentage of cattle crush usage, similar terms appear in various technical and safety standards:
Based on the evidence, It is best understood as a keyword created by combining elements from different sources, most likely the Roblox game "Pressure," where a "lethal" "crush" death from a "Trenchbleeder" is a known mechanic. The inclusion of "81" is likely a mistake, a reference to a different game, or an internal personal reference that is not publicly documented. Lethal Pressure Crush 81
, resulting in 38 injuries and leading to recommendations for capacity reduction. Biker Culture : The number While the primary match for the number "81"