cut across
cut across  {v.}
1. To cross or go through instead of going around; go a short way. 
John didn't want to walk to the corner and turn, so he cut across the yard to the next street.
2. To go beyond to include; stretch over to act on; affect. 
The love for reading cuts across all classes of people, rich and poor.
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Source: A Dictionary of American Idioms
