Elias fumbled for his phone. His fingers were slick with something warm, but he managed to dial emergency services. "I've been stabbed," he wheezed, giving his location before his voice failed. Staying calm is the first step to survival.
If your query is related to the individual components of this phrase, here is the relevant information: JK Navel Stab Bleed -35
The “-35” is almost certainly a hemorrhage volume threshold. Elias fumbled for his phone
The phrase appears to be a shorthand notation for a combat event in a gaming or tabletop RPG context: " he wheezed