Definition from Wiktionary, the free dictionary
See also: tump line
tumpline (plural tumplines)
- A strap used to carry objects tied to its ends by placing the broadened or cushioned middle of the strap over the head just above the forehead.
1918, Rex Ellingwood Beach, chapter 2, in The Winds of Chance:
- The speaker slipped his arms into his pack-harness and adjusted the tumpline to his forehead preparatory to rising.