flong

from The Century Dictionary.

• noun In stereotyping, a combination of several sheets of moist tissue-paper successively superposed, with thin paste between: used by stereotypers, in the papier-maché process, to form a mold or matrix from composed types.
• noun Obsolete preterit and past participle of fling.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Stereotyping) A compressed mass of paper sheets, forming a matrix or mold for stereotype plates.
• imp. & p. p. of fling.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb obsolete Simple past of fling.
• noun A mould, especially one made from papier-mâché, used to create a stereotype.