Acid test
a decisive, crucial test of something’s true worth or someone’s true abilities (coming from the use of nitric acid to test the authenticity of gold samples)
EXAMPLE:
“We liked the new manager, but we knew the acid test would be how she did when she opened our new office in San Francisco by herself.”
a decisive, crucial test of something’s true worth or someone’s true abilities (coming from the use of nitric acid to test the authenticity of gold samples)
EXAMPLE:
“We liked the new manager, but we knew the acid test would be how she did when she opened our new office in San Francisco by herself.”