noun
proportion of income spent on one's dog
Jocular pun on エンゲル係数 (Engel's coefficient), replacing エン with ワン (woof) to refer to dog-related expenses.
最近、犬の医療費が高くて、我が家のワンゲル係数が上がっている。
Lately, our dog's medical bills are high, so our 'wangel coefficient' is going up.
ペットにお金をかけすぎて、ワンゲル係数がエンゲル係数を超えそうだ。
We're spending so much on our pet that the 'wangel coefficient' might exceed the Engel coefficient.