bull butter

See also: bullbutter

English

From bull +‎ butter.

bull butter (uncountable)

(dated, derogatory) margarine
- 1892, R. Henry Rew, “An inquiry into the statistics of the production and consumption of milk in Great Britain.”, in Journal of the Royal Statistical Society, volume 55, page 285:
  About one-third of this importation was margarine, which in America was called "bull butter."
(euphemistic, slang, literal or figurative) bullshit
- 2014, Ken English, More COMMON Sense, page 86:
  (for you city folks, bull butter is that black, smelly substance found in piles all over cow pastures) but in your case, the bull butter ain't on the outside.