noun
sumo retirement ceremony (top-knot cutting)
A formal sumo ceremony where a retiring wrestler's top-knot is cut off, symbolizing his departure from the ring.
横綱の断髪式には多くのファンが詰めかけた。
Many fans flocked to the yokozuna's retirement ceremony.
Compound of 断髪 (danpatsu, 'cutting hair') and 式 (shiki, 'ceremony').