float someone's boat
US /floʊt ˈsʌm.wʌnz boʊt/
UK /floʊt ˈsʌm.wʌnz boʊt/
1.
to please or satisfy someone; to be what someone likes or wants
:
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I know that kind of music doesn't really float your boat, but I love it.
•
Whatever floats your boat, I guess.