Yours, Etc.: Origins and Uses of 8 Sign-Offs
an exclamation of dismay or exasperation; also written oi ; also called oy vay , oy vey
It is snowing again! Oy!
Yiddish exclamation of dismay, 1892, American English. Extended form oy vey (1959) includes Yiddish vey, from German Weh "woe" (see woe).
An exclamation of multiple significance: Oy may be employed to express anything from ecstasy to horror
[1892+; fr Hebrew]