noun
Scottish1 informal Highland whisky, especially that (illicitly) distilled over a peat fire and supposedly flavoured with peat-smoke.
The ‘peat-reek’ flavour is chiefly that of amyl alcohol, produced by imperfect rectification.
2The pungent smoke from a peat fire.
Origin
Late 18th century; earliest use found in The Caledonian Mercury. From peat + reek.
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