To 'burst' someone is to shoot someone.
The famous example of the word 'burst' being used in this context was in
the Megaman (of
so solid crew) murder case when a witness claimed he heard
megaman telling a friend he was going to 'burst' someone who had disrespected him.
1.
Clarke: yo blud this new Take That tune is
off da hizzle fo shizzle
Matt:
Bumbaclot, if me hear u say that again i'll burst yo' b*tch ass.
2.
Jonny V - some bredrin stepped to my brother yesterday!
Matt - lets burst that wasteman!