A Salonlöwe ("lounge lion") is a socialite displaying more style than substance (all that attention paid to hair!). Eine Person, die zwar sehr elegant und gebildet, aber auch sehr oberflächlich ist ("a person who is very elegant and well-educated, but also very shallow") is one definition I found on the web.
It's tempting to compare the German animal to the English "lounge lizard", but I have the sense that the German expression does not connote a slithering parasite, a gigolo who lives off women, which the English definitions of "lounge lizard" stress.
[Source: Wild Things in the German Language: Kindle version | iBook version]
Happy New Year to all my friends!
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