Agrogator

Being overly angry, hostile, or standoffish. One's aggravation is similar to that of a alligator. This results in one's agitated nature to be too overwhelming for others.

person 1: "Hi."
person 2: "Hi YOUR FACE!"
person 1: "Whoa, hella agro."
person 2: "Your FACE IS AGRO AND YOU SMELL LIKE CABBAGE!"
person 1: "You're a agrogator!"

Agrogant

aggressive + arrogant = agrogant
(agro.) german short form for aggressive and (gant.) from arrogant.

A: Cristiano Ronaldo is an asshole. He's arrogant and aggressive.

B: Yea, he is agrogant.
A: LOL. I like turtles.