dog and pony show
US /dɔɡ ənd ˈpoʊ.ni ʃoʊ/
UK /dɔɡ ənd ˈpoʊ.ni ʃoʊ/
1.
a highly elaborate and often ostentatious presentation or display, typically designed to impress or persuade people
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The company's product launch was a real dog and pony show, with flashy graphics and celebrity endorsements.
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The politician's visit to the factory was just a dog and pony show to gain votes.