A person thrilled that someone has enough of a sense of humor to leave something like this on the Urban Dictionary just waiting to be discovered!
That English teacher is a gustin.
verb/gerund: like a gust of wind blow-jobbing your ear, gustin (gusting) is to squawk on and on; pontification
Justin: Julia can you get down here? Egg is gustin about her boyfriend's bicycling and ear infections again.