ber·serk 
/bɚˈsɚk, bɚˈzɚk/ adjective
/bɚˈsɚk, bɚˈzɚk/ adjective : crazy and violent especially because of anger
▪ berserk behavior
▪ berserk behavior
go berserk 1 : to become very angry, crazy, and violent
▪ A worker went berserk and killed his boss. 2 : to become very excited
▪ The crowd was going berserk. [=going wild]
▪ A worker went berserk and killed his boss.
▪ The crowd was going berserk. [=going wild]
