Plural of bundy: slang in Australia and New Zealand for sausages (from rhyming slang 'Bundy rum').
Australian/New Zealand rhyming slang where 'Bundy rum' (a brand) becomes shortened to 'bundy,' then further corrupted to 'bundies' for sausages. The exact evolution isn't documented but likely emerged in early-to-mid 20th century.
Rhyming slang is a linguistic puzzle—speakers create secret codes by rhyming with a word, then drop the rhyming part, making 'Bundy rum' just mean 'sausage' to people who know the code!
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