obs
n.— «For the vast majority of visitors, particularly of the ornithological persuasion, the destination of choice is the Fair Isle Bird Observatory. As well as being a centre for the collection of scientific data on bird migration and breeding, the observatory is also a guesthouse, and a significant contributor to the island’s economy. “The obs,” as it is known to both islanders and visitors, is home year-round to a warden and administrator.» —“Fair Isle: At the obs” by Malachy Tallack New Statesman (United Kingdom) Oct. 1, 2007. (source: Double-Tongued Dictionary)
Further reading
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Commonly heard in Australia, fair dinkum is used to describe something “authentic” or “legitimate.” This phrase is also used as an intensifier. Less common versions: square dinkum and straight dinkum. The expression fair...