hump strap
n.— «I did strap myself in with my Fathers 3 ft. WWII canvas trunk belt. I needed to do that so I could use my pole pruner up in the top part of the tree. It also came in handy as a hump strap to haul the limbs to my bundling spot.» —“Woodfiring/ Ash Glazes/ Koie Cooker 2nd ed.” by Gary Navarre CLAYART List Oct. 20, 2004. (source: Double-Tongued Dictionary)