FHRITA is an internet accronmym for FUCK HIM RIGHT IN THE ASS. Just like FHRITP, it's a random command, usually uttered when it is completely irrelevant to the subject at hand.
Stranger 1: Hey, whatsup?
Stranger 2: FHRITA
Stranger 1: Whats that?
Stranger 2: FUCK HIM RIGHT IN THE ASS *Stranger 1 has disconnected
Originating from the FHRITP, but personalized to an individual where the Y stands for "you" indicatingdominance, where a person has triumphed by a large margin with ease.
Example:
"Hey, I almost had you!"
"You Never had me. You weren't even close. I FYRITP!"