The transfer of ink to paper using a small sponge (usually a cosmetic or craft sponge) in place of a brush. The ink is applied to the sponge and then the sponge is dabbed/tapped lightly onto a piece of paper leaving a series of small dots. A sponge with many holes, squeezed tightly while sponging, will produce a beautiful lacy effect.
Found on http://www.encyclo.co.uk/local/20484
Spon'ging adjective & noun from Sponge , v. Sponging house (Eng. Law) , a bailiff's or other house in which debtors are put before being taken to jail, or until they compromise with their creditors. At these houses extortionate charges are commonly m... Found on http://www.encyclo.co.uk/webster/S/170