ダブルフラットでしょう
daburufurattodeshō
1. Probably a double flat.
Noun
#677654
1. Probably a double flat.
1. it seems; I think
2. right?; don't you agree?
1. to be duplicated; to be repeated
2. to overlap; to fall together (of dates, etc.)
+ 3 additional meanings1. aimlessly; by chance
1. winger (position)
2. working group
1. double bed