へそくりじゃありませんでした
臍繰りじゃありませんでした
hesokurijārimasendeshita

Noun
Desu Copula

The polite, past negative form of へそくり

1. It wasn't a navel-jerking.; It wasn't scrimping and saving.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana