In the movie Wayne's World, Wayne and Garth are always avoiding Wayne's ex-girlfriend Stacy, so when she's coming they shout "Stacy Alert".
"Stacy Alert" is therefore a generic heads-up when a person you want to avoid is approaching.
Stacy: Well, don't you want to open your present?
Wayne: If it's a severed head I'm going to be very upset
Stacy: Open it.
Wayne: What is it?
Stacy: It's a gun rack.
Wayne: A gun rack... a gun rack. I don't even own *a* gun, let alone many guns that would necessitate an entire rack. What am I gonna do... with a gun rack?
Stacy: You don't like it? Fine. You know Wayne, if you're not careful, you're going to lose me.
Wayne: I lost you 2 months ago. We broke up. Are you mental? Get the net!
"UH OH! STACY ALERT!"
17π 6π
Noun. A facebook message that sucks, often due to its level of gayness.
Verb. To suck at facebook, for example by sending only messages that are boring and/or totally gay.
Girl 1: Did you hear Colleen got engaged?!
Girl 2: I know, yawn. She sent me the gayest facesuck.
Girl 1: Yeah, Colleen sucks in real life and she facesucks.
10π 8π
If you are required to say hello to someone when you see them, you are on a hello program with them.
The hello list is comprised of all the individual people with whom you are on a hello program.
Girl: Hello
Guy: Hello
Girl's friend: Why the fuck did you say hello to that guy?
Girl: Gaa, he bought my textbook. Now we're on an eternal hello program.
9π 1π
Links to videos or websites etc. that people send each other, i.e. nuggets that people trade.
Girl 1: Holy fuck have you been on urbandictionary.com? Soooo funny!
Girl 2: Dude, staple trader nugget.
4π 3π
An facebook status that functions to update people on how desperate you are.
Girl 1: Did you hear Kimmy's 3rd baby daddy bounced??
Girl 2: Everybody knows dude! She made a desperatus update!
11π 2π
Your personal lexicon. If you're legit, it's full of dope shit.
"Damn you cracks me up! Your verbal diary half belongs on urban dictionary!"
4π 5π
Totally relaxed and chill, a.k.a. hella mellow.
Girl 1: So I hear you scared off George Clooney with your repeated text messages.
Girl 2: Whatever!! I sent him like TWO texts. It was hells mells!
Girl 1: Whoa, you need to mellow out. You know George Clooney scares off easily.
6π 4π