Be contrary to ordinary procedure or limitations(verb)
Travel across or pass over(verb)
Cut using a diagonal line(verb)
WordNet. Princeton University. 2010.
Use "cut across" in a sentence
"From the bikes themselves to Harley-related merchandise to Harley-Davidson tattoos on the bodies of enthusiasts who cut across all social groups, consumers see Harley as a part of their identity."
"I turned and waved to Pedro and Screwie Louie as they cut across the dance floor, drinks in hand."
"All the F-train kids grab their cells and check their messages on the little half-block between Houston and First Street, so I cut across eastward to avoid them."