it comes from the Yiddish "oh vez
mear". and in response to the
'woe-is-me'ing post, you're incorrect. woe is me is a commonly used phrase and although not grammatically sound, it is in the parlance of our times. No one would say "
woe is i". sorry.
you are sitting with your friends and have a self-realization that "these are my friends, wow!". you then would exclaim, with your hands
cursing the sky "oh
vez mear!" or "woe-is-me"