float someone's boat
US /floʊt ˈsʌm.wʌnz boʊt/
UK /floʊt ˈsʌm.wʌnz boʊt/

1.
agradar, gustar, satisfacer
to please or satisfy someone; to be what someone likes or wants
:
•
I know that kind of music doesn't really float your boat, but I love it.
Sé que ese tipo de música no te agrada mucho, pero a mí me encanta.
•
Whatever floats your boat, I guess.
Lo que sea que te guste, supongo.