1.
piss-itate = irr-itate. when some ones tried to piss you off they are pissitating (just like irritating).
2.
piss-itate = piss-(particip)-ate. when your bus pull off for a pee break there's a bunch participating in
pee'ing. Like mass urinate.
A
bus pulls off at motel, so on boarders can pissitate, 2 minutes later:
Stop 'pissitating'
man, am already pissed off!!