They were 'flinging' abuse at each other. [=they were angrily shouting insults at each other]
(..) And you don't think that's something You probably should have told us? It wasn't serious. Just an occasional fling. And we're not allowed to date in the service. That's quite a secret you've been keeping. I was protecting my job. (..)2016 TvShow: Bones Title: The Secret in the Service Season: 11 Episode 17