I done a Google....

Snobbish persons were an abomination but,
with the term snob pre-empted, (see Para. 3 )
they were called "(h)alf-sixers".
Highly convivial folk (not a little odd) were -
as elsewhere - said to be a caution : a
term of approbation.

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Posted By: CauldRon, Mar 22, 13:15:59