wibble
n.— «Polyamorists also had a word for low-key jealousy—”wibble.” “It’s a kind of jealousy that doesn’t represent a massive sexual threat; it’s a smaller version of jealousy,” said Dr Barker. “You can say ’I’m wibbly’—I’m really OK but a bit shaky, and I need some reassurance.”» —“The Language of Love for Polyamorists” by John von Radowitz Scotsman (Glasgow, Scotland) Apr. 3, 2005. (source: Double-Tongued Dictionary)
Further reading
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Joey from Orono, Minnesota, has been learning Italian and its many idioms, which makes him wonder if there are other languages that can simply be learned in a classroom without input from a larger cultural context of new and evolving expressions...