noun
grappling hook; grappling iron
A hooked tool with multiple prongs, thrown or attached to a rope for climbing, boarding, or pulling objects.
忍者はひっかけ鉤を使って塀を登った。
The ninja climbed the wall using a grappling hook.
Compound of 引っ掛け (hikkake, 'hooking') + 鉤 (kagi, 'hook').