'Whatever floats your boat' ...
This is a term I commonly use on others and almost all the time, I usually mean good. So yea, go do whatever that pleases you ... whatever it is that makes you happy.
But the other day I said it through grinded teeth to 'him'.
Him : Bla bla bla ...
Me : Ha ... ha. Whatever floats your boat.
Now what I really wanted to say was ... Yea, go ahead and do whatever you like even though I think you're an absolute imbecile. I'm embarrased to be standing anywhere within a 1km radius of the 'boat' that is your pathetic life and you can be 101% assured that we'll never be on the same 'boat'. Damn straight!