a hitch made with a rope over a hook so that it holds fast when pulled but is loose otherwise.
Origin of Blackwall hitch
First recorded in 1860–65; named after Blackwall, a London shipyard
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a knot for hooking tackle to the end of a rope, holding fast when pulled but otherwise loose
Word Origin for Blackwall hitch
C19: named after Blackwall, former docks in London
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012