Whatever floats your boat

[Becky]

This is a phrase that often means whatever soothes your soul or whatever works best Aka- Whatever you feel like doing.

[PussyCat]

Your view is different then mine so I am going to tease you in a sarcastic way

[Rihanna]

A term used to say, Im glad that makes you happy, even though I dont get it myself.

Comes from the term man in the boat referring to the [clitoris] and the female genitalia. So, if your boat is floating, you are quite happy.

[PussyCat]

This means whatever turns you on, interests you, suits you, something you like, your preference or choice

[Mark Zuckerberg]

An alternate expression for [whatever helps you sleep at night], used to avoid to end an argument especially when someone says something absurd.

[Jason Yan]

(Idiom) What you do is your choice

[Tanya Shivari]

WATER!!!
thats what floats my boat at least.

also used as an expression which means you can do whatever your preference is.
i dont see how that has anything to do with water, though...

[Sarah]

A conspicuously dirty-sounding but for the most part undefinable sex slur that can mean mosltly anything, as long as it has to do with sex.