What’s the origin of the phrase ‘Technicolor yawn - A’?
This is one of the many colourful Australian phrases for vomiting. It was coined by, or at least popularised by, Barry Humphries and appeared in his 1965 review A Nice Night’s Entertainment:
When I swallowed the last prawn,
I had a technicolor yawn and I chundered in the old Pacific Sea.
See also Point Percy at the Porcelain.