make a mountain out of a molehill
:defintion:
to make a slight difficulty seem like a serious problem1.
You're making a mountain out of a molehill. You wrote one bad essay - it doesn't mean you're going to fail your degree. (usually in continuous tenses)
2.to cause something simple to seem much more difficult or important.
McAleer knows there's a mistake in the book and promised to correct it, but Rosen continues to complain about it — she's really trying to make a mountain out of a molehill. Clever lawyers can make a molehill into a mountain.
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