のるかそるか

Japanese edit

For pronunciation and definitions of のるかそるか – see the following entry.
伸るか反るか
[phrase] (idiomatic) make or break, win or lose, sink or swim, all or nothing, go big or go home
Alternative spelling
乗るか反るか
(This term, のるかそるか, is the hiragana spelling of the above term.)