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

1.
合胃口, 使人滿意, 投其所好
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.
我知道那種音樂不合你的胃口,但我很喜歡。
•
Whatever floats your boat, I guess.
隨你喜歡吧,我想。