Wiktionary
n. (context Australia New Zealand English) A regular-sized cup of espresso coffee without milk, being a diluted version of a short black.
Wikipedia
Usage examples of "long black".
I was feeding quietly near the pales which separated the meadow from the railway, when I heard a strange sound at a distance, and before I knew whence it came -- with a rush and a clatter, and a puffing out of smoke - a long black train of something flew by, and was gone almost before I could draw my breath.
Hibar Ribe stood in the center of the bridge on the largest warship in the Jibetian fleet, his hands clasped behind his back, his long black robe heavy and oppressive on his shoulders.
Cuppertino fingered the long black barrel of the laser rifle nervously.
A long black cloak hid her, but the light fell upon her face, heart-shaped under the little three-cornered velvet cap that Venusian women wear, fell on ripples of half-hidden bronze hair.
Theleb K'aarna turned away, pettishly picking at his long black beard.
Her glorious hair was in a long braid today and she was wearing a green silk pantsuit several shades darker than her eyes under her long black leather coat.
She was pale and beautiful, with one long black braid, and she was leaning forward and lightly touching the back of a boy's hand.
After a fifteen-minute drive, the long black car nosed its way into a basement car park where they were let off and surrounded by a phalanx of security men who took them up to the main floor level.
Her long black hair lay in disarray about her head, and her face was covered with scrapes and bruises.
In her right hand she held a long black whip with a gold handle, much like the ones Horsekin officers carried as a mark of rank.
Around its perimeter, beginning just above her shoulders, were sharp-pointed rays, very tall at the crown, that haloed her head with a great shining star, leaving her long black hair falling free behind.