you can't be a little bit pregnant

you can't be a little bit pregnant

proverb This is a situation that requires a complete and utter commitment or total involvement. If we choose to break off from the company and establish our own firm, then that's what we have to commit to—you can't be a little bit pregnant, you understand?
See also: bit, little, pregnant
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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A home test works for something like pregnancy because you can't be a little bit pregnant. Either you are pregnant or you aren't.
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