Wiktionary
farthing dip
n. 1 (context archaic English) A piece of bread dipped in hot fat and sold by pork butchers. 2 (context archaic English) A candle.
Usage examples of "farthing dip".
Stephen methodically laying out his instruments by the light of a farthing dip.
She half closed her eyes, and indulged herself in a fascinating picture of a briefless barrister lodged in a garret, writing immortal novels by the light of a farthing dip.