lane-splitting
 n.— «When we moved here to California, I was surprised to see that this state apparently allows motorcycle drivers to engage in a practice called “lane-splitting.” This is the practice where a motorcycle can jam itself in a lane space already occupied by a truck or automobile.» —“Only in California: Motorcycle ‘lane-splitting’” Contra Costa Times (Walnut Creek, California) Dec. 10, 2006. (source: Double-Tongued Dictionary)

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