What does "polypin" mean?

A plastic version of the kind of brewery cask called a pin (equal to half a firkin), popular in homebrewing and the off-trade (deliveries for home consumption).

Polypin

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A plastic version of the kind of brewery cask called a pin (equal to half a firkin), popular in homebrewing and the off-trade (deliveries for home consumption). UK

Etymology

From poly- + pin.

Related phrases

off trade

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.