Caracitated is a mix of Carnally Suscitated which means Sexualy aroused, let me explain. Carnal means body, to suscitate means to provoke.
So... Bodily provoked.
Saying you're Carscitated is a way of saying you're having a boner but without making anyone uncomfortable.
I can't believe you're having a boner right now!
Don't say it like that. I'm just... Carscitated.
What?
Carnally Suscitated.