A combination of lust and thirst. It is used to describe a thirst for lust, or a need to have your lust quenched.
"I'm so lursty right about now I'd fuck the fattest bitch in this club"
"I haven't hit in like three months dog, I'm so lursty!"
Lloyd: "Damn I see them hoes choosin' dog.
Andre: "I know they wanna fuck, you can see the lurst in their eyes"
lucky series of events
He had lursts, right through the day.