Dictionary

blue John en · NOUN

Pronunciation

• /ˈbluː dʒɒn/ (UK)

Etymology

From blue + John.

Meanings

1. (obsolete, uncountable) Afterwort, partially fermented wort.
2. (uncountable) A semiprecious mineral mined in Derbyshire, a form of fluorite with bands of a purple-blue or yellowish colour.
3. (US, regional, uncountable) Skimmed milk.
   • Lee went up front to his icebox and brought back a jar of milk. The cream had been skimmed from it. I said, “This tastes like blue-john to me.” 1968, Charles Portis, True Grit:

Forms

Relateds

sky blue