Festoons or festoon-like decorations collectively; the practice of applying festoons excessively or superfluously.
From 'festoon' plus the suffix '-ery,' which creates nouns indicating a collection, practice, or often excessive display of the root word. This humorously describes over-decorated spaces.
'Festoonery' is a word that sounds fancy but actually means 'too much fancy stuff hanging everywhere'—it's English being playfully sarcastic about over-decoration.
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