Bal"der*dash (&?;), n. [Of uncertain origin: cf. Dan. balder noise, clatter, and E. dash; hence, perhaps, unmeaning noise, then hodgepodge, mixture; or W. baldorduss a prattling, baldordd, baldorddi, to prattle.] 1. A worthless mixture, especially of liquors.

Indeed beer, by a mixture of wine, hath lost both name and nature, and is called balderdash.
Taylor (Drink and Welcome).

2. Senseless jargon; ribaldry; nonsense; trash.

Bal"der*dash (&?;), v. t. To mix or adulterate, as liquors.

The wine merchants of Nice brew and balderdash, and even
mix it with pigeon's dung and quicklime.
Smollett.

• senseless talk or writing; nonsense.
  
• (vulgar) adulterated wine -->