This type of person is likely to call you a "n00b, noob or newb" on telentless (IMO) games such as CS (Includes CSS) and other games similar to it. This type of person is also likely to make lame jokes about your mother and lame things like that.
Generally avoid this person at all costs. Their sheer idiocy and relentless swarms if moronic messeges over Instant Messengers (Like AOL Instant Messenger or MSN) Is known to actually decrease your IQ by atleast 10 points. Although this can not be confirmed it is likely to happen.
"Haha, Check out that Kamakazie over there. What an asshat."