オイルストーンでしょう
oirusutōndeshō
1. Oilstone, likely.
Noun
1. Oilstone, likely.
1. to age; to grow old
1. stone wash; stonewashed (jeans, etc.)
1. oil fence
1. it seems; I think
2. right?; don't you agree?
1. Wasn't oil.; It wasn't oil.
1. Not oil.; It's not oil.
1. of oil; oily
1. Oil.; It is oil.