Tattle battle

[Zipporah Schumaker]

When person A sees person B doing something bad and threatens to spill the beans. Person B responds with his or her own threat of blackmail, to which person A responds with even more blackmail. Can escalate to death threats.
Usually takes place between siblings or people who know each other quite well.
Also, this can take place between two or more parties. Various classifications of [tattle] battles include, but are not limited to the following: minor skirmish, big team battle, and [nuclear warfare].
[Tattle] battles can lead to bickering, verbal and physical attacks, including being called such epithets as bitchass, and death.