What Mr. Feltman called Arya because he is an illiterate bitch who can't pronounce a four letter word. Throughout the year, he continued to call Arya Ary even when Arya explained to him its pronounced (a-re-ya) and not (a-ree). What a durdur.
Bob: Hey! Look at that sumo wrestler! He's got long hair and sun glasses!
Mark: Hehe, he's got a gotie as well.
Bob: He looks a bit pale too.
Mark: Hehe, I bet his name's Ary.