The feeling of being high or beyond happy, often to the extent that one becomes deaf to anything outside their own head. Always used on girls, as any guy described as being 'floaty' would be considered gay.
Lily was all floaty after Ryan asked her out - I had to scream in her ear before she realised algebra was over.

The floatyness was so bad after Sunday morning that I was hopeless for the rest of the month.
by A. A. L. March 15, 2007
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