What is "jizzed"

Usage examples of "jizzed".

I guess I kinda panicked, even though I knew that these people have a thing about blood, and I drew back, and well, I knocked the syringe out and I jizzed at the same time, and there was blood and cum everywhere… well, Constance was going crazy now, lapping up everything, sperm, blood, sweat, I could have pissed on her face and she'd've drunk it.