Vicki Peterson wrote the song but Susanna Hoffs took the lead vocal. It's about a girl who finds out her man has been running around with another girl - his philandering is getting out of hand. In a Songfacts interview with Peterson
, she said: "I had written 'Getting Out Of Hand' about a little bit of a fantasy, a romantic triangle going on. And I liked the challenge of adding some harmonies that were a little tweaked, they weren't quite the one-three-five harmony. There was almost a sourness to the chords and in the chorus.
That was part of The Bangs sound: We took everything that was expected and then tweaked it just a little bit. And then the guitars, at the time I was playing the Les Paul I'd had since high school and I had a 1968 Strat. Susanna had a Rickenbacker, which was awesome."