To re-evaluate is a concious decision made by an individual, who has possibly hit rock bottom, to develop a plan in order to get their life back on track in an attempt to climb their way back up the social ladder.
Drew: What's up Joe?
Joe: I just got kicked out of school because I never go to class and my marks suck, I'm flat broke because I can't keep a job, and my girlfriend just dumped me... fuck.
Drew: You need to re-evaluate.
Melissa: "oh my gawd Stephanie is ugly"
Clarissa: "oh my gawd are you dissin' my bestie?"
Melissa: "oh my gawd no i'm just evaluating"
Clarissa: "oh my gawd did you evaluate my bestie?"