腕白 わんぱく横綱 よこずなではありませんでした
wampakuyo kozu nadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 腕白横綱

1. Was not a mischievous sumo champion.; Was not the champion of mischief.

Past/Perfective
Negative
Polite
Formal Register
Sumo