This fool is starting to make me feel stabby. Coming back to one of his threads is like a scab you want to pick but you just know it will get infected, yet you feel oddly compelled to see just how much of a fool he has made of himself.
Meaning of stabby for the defined word.
Grammatically, this word "stabby" is an adjective. It's also a morpheme, more specifically, a suffixe.