Eating the Crust
When you're giving a girl a good time and she gets truffle butter on her snatch from your ass and you just eat it like it's the best thing.
He ate her truffle butter like it was a piece of cake.
She got truffle butter on her snatch and he just ate it like it was a snack.
He was giving her a good time and then he ate her truffle butter like it was a treat.