bonk
v.β Β«But there is also the flip side, when fatigue hits all sets of muscles at once. If youβve been riding hard and then start running, often it feels as if your thigh bones are no longer attached to your shinbones. Experienced athletes call this “cross-bonk.”Β» βββGo For Itβ: Making Your Way In A Triathlon” by Suzanne Charle New York Times Sept. 23, 1984. (source: Double-Tongued Dictionary)