fastpack means to run while carrying a backpack on a multi-day trail. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
verb
- To run while carrying a backpack on a multi-day trail.“In 1987, with fellow runner Will Uher, John fastpacked the 211-mile John Muir Trail in the Sierra Nevada in 8 1/2 days, carrying a 30-pound pack.”
- To to backpacking with the goal of maximising the distance traveled every day.“It was slowing her down in adventure races, and it was complicating her plans to fastpack a bunch of trails in New Zealand.”