- fumidashi '(rear) step out' - This is when the defending rikishi accidentally steps back over the edge without the attacker initiating any kind of technique [cf. fumie ('step pictures'), the holy icons that early Japanese Christians were supposed to step on to prove they were no longer believers].
- isamiashi 'forward step out' [lit. 'spirited foot'] - This is when the attacking rikishi accidentally steps too far forward and out of the ring before winning the match, giving the victory to his opponent.
- tsukihiza 'touch knee' - This is when a rikishi stumbles without any real contact with his opponent and loses the match by touching down with one or both knees.
- tsukite 'touch hand' - This is when a rikishi stumbles without any real contact with his opponent and loses the match by touching down with one or both hands.
- koshikudake 'hip collapse' - This is when a rikishi falls over backwards without his opponent attempting any technique.
UPDATE: After Day 12 of the current Natsu Basho, Asashoryu remains 12-0, with no one else closer than 10-2. The Bulgarian Kotooshu suffered a quick and brutal loss to Asashoryu yesterday by a tsukidashi ('frontal thrust out'), but he recovered nicely today to beat the ozeki ('champion') Chiyotaikai, who had been only one loss behind the grand champion, but is now at 10-2.