ex. Dude your mama is so fat, that when she sits aroud the house, man she sits AROUND the house! Nooch!
Therefore, a noochbag is someone who constantly bashes people and excessively uses the word Nooch at the end of their sentence.
Johnson: "dammit man this hotdog is gross, its all limp and soggy"
Josh: "THATS WHAT YOUR MOM SAID LAST NIGHT" NOOCH!