The definition of auld lang syne means the good old days or past times.noun
An example of the use of auld lang syne is in the sentence, "Let's go visit the old park for auld lang syne," which means "Let's go visit the old park for old times' sake."YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: Scot, lit., old long since
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Origin: Scots : auld, old + lang, long + syne, since.
auld lang syne - Cultural Definition
A traditional Scottish song, customarily sung on New Year's Eve; the title means “Time Long Past.” The words, passed down orally, were recorded by the eighteenth-century poet Robert Burns. The song begins:Should auld [old] acquaintance be forgot, And never brought to min'? Should auld acquaintance be forgot, And auld lang syne!