The word is an abreviation of 'man-poodle' which describes the poofy-ness of the fringe.
girl: you know that type of fringe like thing indies have?
boy: you mean when they have all shorter hair but a long flowing, slightly gungy front thing?
girls: Yeah thats it.
boy: Its called a Moodle
girl: OHHHHH *mind wave of awesomness*
A Moodle is a disembodied gremlin with arms but no legs. It never smiles and is often crying, possibly due to failing all online quizzes. It's face is always always serious and sad. Although he constantly cries, there are no tears. His face looks something like this: ಠ_ಠ . He walks around by using his arms to manipulate stilts with webbed flippers on the end of them.
The moodle is not capable of coherent speech. Instead, it mumbles to itself, using words like VSEPR, NU, Lambda and other incoherent terms to express its' thoughts and feelings. That is, if it had any. The Moodle's mind has gone to mush after recent chemistry and physics test. He is usually confused, seen wandering the 7A wing.