Verb We heard the sound of corks popping as the celebration began. One of the buttons popped off my sweater. Guns were popping in the distance. We popped some popcorn in the microwave. The popcorn is done popping. I didn't mean to say that—it just popped out. Her shoulder popped out of its socket. He opened the box, and out popped a mouse. If you are busy, I can pop back in later. My neighbor popped in for a visit. Adjective interested in the pop fiction that most of the other publishing houses happily churned out See More