BERSERK
ADJECTIVES
1950 ► APE berserk, frenzied → Amer. sl.
1970 ► BERESK berserk, out of control → sl.
VERBS
1908 ► GO BUSH to go berserk, to run wild → Aust.
1970 ► NUT UP to lose one’s temper completely; to go berserk → sl.
1999 ► GO TROPPO to go berserk → Aust. sl. (Bk.)