be-all and end-all, the

be-all and end-all, the idiom
The most important element or purpose, as in Buying a house became the be-all and end-all for the newlyweds. Shakespeare used this idiom in Macbeth (1:6), where Macbeth muses that “this blow might be the be-all and the end-all” for his replacing Duncan as king. [Late 1500s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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