get a bang out of (someone)
To get a feeling of enjoyment, amusement, or excitement from someone. I get a bang out of Janene—she's really hilarious. John was gushing about you all day—I think he really gets a bang out of you.
get a bang out of (something)
To get a lot of enjoyment or excitement from something. Even as an adult, I still get a bang out of building sandcastles at the beach. She really gets a bang out of doing wheelies on her motorcycle in front of an audience.