A 'scoosh' is a term used mainly in gaming scenarios describing a person's behavior. The person has to be quick-witted, evasive, and very sly. The word generally comes up in heated debates over VoIP (Voice over Internet Protocol). The person must also have a comedical drive.
That lil' scoosh is really annoying.
You stupid scoosh quit ganking me!
Ya big scoosh!!