n.1.(Naut.) A block with a tail. See Tail, 9.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Judo tailblock? Darren King's on his own planet and we hope to visit someday.
From dusk 'til dawn, Tasmania's Duncan Ewington has the tailblock on lock.
Flop backwards on Hewitt's tailblock and you're going home in a bodybag.
Duane Peters was his hazardous self, landing every trick to tailblock or revert or both.