bike whack
v.— «Hit CP6 withouyt a hitch and headed to CP7 then a “bike whack” that would take us across a river and through a dense woods.…Most teams would back track the whole bike whack. We took roads.» —“Adventure Race Report (dhutch&birch)” by birch in Michigan Thebackpacker.com May 9, 2004. (source: Double-Tongued Dictionary)