the act of tracking people down via online tools or any other tools to find out more information about a person. Typically this word is used to describe males who are trying to find more information about females they have met or are attracted to. Though woman have been known to profile men. Not to be confused with stalking where the difference lies in the intent. Stalkers and stalking is normally used to describe people who track people down normally with evil intent, like trying to murder them, annoy them, rape them, etc...profilers are above this kind of behavoir.
Hey Daniel did you hear about Ryan? He met this girl Karen yesterday at Club Mood and didn't get her number but he profiled her on myspace and found out that she has two kids!
the act of befriending guys in a social envrionment in order to get access to their girl friends. Normally if one were to approach the girl directly, the guys will prevent one from making any progress with that girl cockblocking, therefore dude chasing involves becoming friends with the guys in order to win their trust. It is a technique often used in a pick up artists circles.
Ryan was getting cockblocked by the Cindy's guy friends at Club Factory. Ben dude chased her guy friends, got their numbers, and ultimately Cindy's phone number as well. Ryan went home crying, but was happy when he got to play Marvel vs. Capcom 2 for xbox at home.