I don't even know what WHAT means?
"Septic"? It means putrid. Infected with harmful bacteria.
Or did you mean "wont"?
Wont (not won't, no apostrophe and sounds like "want") means having a tendency towards something.
IOW, rather than saying
"Pissing his panties over stupid shit is something Havana Moron TENDS to do.", if one wanted to sound all fancy and literate and like one has an actual vocabulary, one might instead say
"Pissing his panties over stupid shit is something Havana Moron IS WONT to do."
Other than that, I can't figure out what I supposedly don't know the meaning of.
I just know you're a septic idiot who is wont to behave like a petulant child.