Meaning of ものかわ in a Haiku

Question

Bashō: ふつかよい ものかわはなの あるあいだ.

I’m completely lost by ものかわ. Any idea?

Answer 1

The original should be:

二日酔{ふつかよ}ひ ものかは花{はな}の あるあひだ

The expression in question is 「ものかは」 and not 「ものかわ」, which would probably be why you could not look it up.

As @Chocolate stated above, 「ものかは」 means "trivial","trifling","of no significance", etc. in Classical Japanese. It has a nuance similar to that of "to hell with" without the vulgarity.

Thus, the haiku means:

"I won't be bothered with hangovers whilst the flowers are in bloom."

One final note:

When Japanese people say "while the flowers are in bloom", they are almost always referring to a very short period of time. That is why we might want to get drunk and not care about it if it were only for a few days.