a large annoying person who is entertaining, yet tiresome. you get more entertainment out of making fun of them than their actual presence. however, always loyal, especially to females. rather sassy.
person 1: ah does he have to come to my party?!
person 2: yes, he does. he is bringing beer and we can fuck around with him when he gets drunk.
person 1: yeah man! he is such an izmo muahahahaha!