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1.
High ability to float.

Awesome buoyancy properties.
Finis sells floatatious fins.

by Swimmer Lisa November 06, 2008
 
2.
A man or woman who has mastered the art of floating in water and flirting at the same time. A true multi-tasker in the ways of mating.

A very sexy floater.
Woman 1: whoa did you see that guy!
Woman 2: Man I did! He's got the hair, the equipment... He is so floatatious! I could jump his bones right here in the pool!
Woman 2: whoa girl they'll bar us from this pool with talk like that!
by Rey The Word Creator December 13, 2010