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general::
Phrase(s): (You) can’t win them all. [and] (You) can’t win ’em all.
Inf. a catch phrase said when someone, including the speaker, has lost in a contest or failed at something. (The you is impersonal, meaning one, anyone. The apostrophe on ’em is not always used.) • Mary: Gee, I came in last again! Jane: Oh, well. You can’t win them all. • "Can’t win ’em all," muttered Alice as she left the boss’s office with nothing accomplished.
McGrawhill's American Idioms And Phrasal Verbs