Pissimistic
Pessimism that pisses others
My boss is a pissimistic guy.
Pissimist
The tiny droplets of urine that gets on the toilet seat while pissing
"Is the glass half empty? Is it half full? Doesn't matter cuz it'll just end up being pissimist anyways"
pissimist
someone who insists on sharing their bad mood with everyone else, figuratively pissing in their corn flakes.
"She's such a pissimist! I wish she'd keep her bad vibe to herself."
pissimistic
Having a pessimistic attitude that generally pisses off others around you.
Why is he always going around saying bad things about me? He's acting really pissimistic!