that's the way the cookie crumbles informal,
chiefly N. Amer.
that's the situation, and it must be accepted, however undesirable.
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THAT'S THE WAY THE COOKIE CRUMBLES INFORMAL,
Meaning of THAT'S THE WAY THE COOKIE CRUMBLES INFORMAL, in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004