To kill. "These thirsty niggas will lurk, then you'll have to catch 'em and murk 'em." -- 50 Cent (In my hood )
In the UK when u diss someone so bad they have nothing 2 say back/they cant think of anything to say back. u jus murked/merked them. Another word for this is slew eg u got slewed. Also in the UK if you beat someone up u murk/merk them. "They all spit the same crap - merk this, merk that, but you can't merk me cos that tracks jus whack"
Dead. "One squirt will leave all yall murk." -- Dem Franchize Boys (White Tee )