Definitions for tappit hen
A bottle of wine in the port wine trade containing 2.25 liters of fluid, three times the volume of a standard bottle.
Origin: Borrowed and modified from Scots tappit-hen.
a hen having a tuft of feathers on her head
a measuring pot holding one quart (according to some, three quarts); -- so called from a knob on the lid, thought to resemble a crested hen