Green’s Dictionary of Slang

(W.I./UK teen) to beat up.

1942		L. Bennett ‘Election’ in Jamaica Dialect Verses 15: An ef any man gi gains Miss Knib, meck / Up yuh mine fe we bruck a fight.
1942		L. Bennett ‘Seeking a Job’ in Jamaica Dialect Verses 18: Ah feelin’ good dis mahnin’ or / Ah hooda bruck a fight.
2006		G. Malkani Londonstani (2007) 3: If he can’t bruck up goras, no one can.