grr-o-rama
A series of progressive anger, resulting in grring and different levels. There are five levels of grr-o-rama. 1 being kinda pissed at maybe a stupid math problem, and 5 resulting in the hurting of everyones genitals within 3 1/2 miles.
That guy is at, like, almost level 5 grr-o-rama. Hide your genitals if you want children!