It means fire good.

Hi, I don't think this is what we would call 'standard English'. Looking at the whole set of lyrics, 'pyro' generally relates to 'fire' (pyrotechnics, pyromaniac, pyrography- all words related to fire). 'Ting' I think means 'thing', perhaps in a Jamaican accent. So I imagine it means 'it's a fire thing'.

Pyro = pyromanic, which means a person who is obsessed by watching/making fire. “Ting” = “thing,” when spoken with a Caribbean accent. So, “pyro ting” means a “fiery thing” or something like “it’s really hot.”