トニックウォーターでしょう
tonikkuwōtādeshō
1. Probably tonic water.
Noun
#1366606
1. Probably tonic water.
1. it seems; I think
2. right?; don't you agree?
1. water
1. tonic
1. gin and tonic
1. mineral water
1. tonic water
1. waterfront
1. water slide; flume
1. Watergate