She has an 'appetite for' adventure. [=she likes adventure; she likes to do adventurous things]
That movie made me 'lose my appetite'. [=I no longer wanted to eat after seeing that movie]
Delicious smells from the kitchen 'whetted our appetites'. [=made us hungry]
(..) Don't tell me. Still in love? Oh, head over heels. Pressing charges, though. You've made some mistakes... Miss Kyle. - Girl's gotta eat. - And you have an appetite. Why would you run? You can't hide from us with a record like this. Maybe it's not you I'm running from. Who then? Bane? (..)2012 The Dark Knight Rises