The Collaborative International Dictionary
Taplash
Taplash \Tap"lash`\, n. Bad small beer; also, the refuse or dregs of liquor. [Obs. or Prov. Eng.]
The taplash of strong ale and wine.
--Taylor
(1630).
Wiktionary
taplash
n. 1 (context obsolete UK dialect English) small beer of bad quality 2 (context obsolete UK dialect English) the refuse or dregs of liquor