Play word ひとり相撲 ひとり相撲 ひとりずもう mimicking a wrestling match by oneself (as a form of street performance, etc.)
Play word 横綱相撲 横綱相撲 よこづなずもう facing one's opponent head-on and winning via overwhelmingly superior strength or skill
Play word 新相撲 新相撲 しんすもう "new" sumo (for women) conducted on a mat, wearing leotards instead of a mawashi
Play word 神相撲 神相撲 かみずもう part of the shrine dedication ceremony at the Hachiman shrine in Yoshitomi, where articulated wooden dolls enact a sumo bout
Play word 相撲に勝って勝負に負ける 相撲に勝って勝負に負ける すもうにかってしょうぶにまける to ultimately fail despite being in a favourable position