Fetching details from the dictionary...
to make merry; to be festive
合格の知らせに皆が浮かれた。
Everyone was in high spirits at the news of passing.
年末が近づき、街全体が浮かれている。
With year-end approaching, the whole city is in a festive mood.
クリスマスが来ると誰もが浮かれるものだ。
When Christmas comes, everyone gets caught up in the festive mood.