バックストロークでしょう
bakkusutorōkudeshō
1. Probably a backstroke.
Noun
#2876977
1. Probably a backstroke.
1. bag
1. vast; huge
2. malva nut (Scaphium affine)
1. Bakumatsu period; closing days of the Tokugawa shogunate
1. roar of laughter (from multiple people); burst of laughter
2. laughing hard (of a single person)
1. explosive; blasting powder
1. stroke (of a racket, in swimming, etc.)
1. comeback
1. staff; staff officer