Online dating profiles can basically only tell you that she's the kind of girl who's unafraid to lie on record, and you're the kind of guy who'd fill out an online dating profile. Scrap that crap for Crazy Blind Date.
CBD's a free service that dispenses with extensive, fictionalized bios and pictures that were probably taken post-tapeworm in order to provide an honestly surprising, potentially dismaying first encounter. Start by choosing the nature of your meetup (solo, double date, or the piteously flexible "either"), then set a time and date: "tonight", "tomorrow", or "some other time(s)" (the ultimate fodder for procrastination = spontaneity). To ever so slightly improve your odds, set prefs for height, ethnicity (Asian, Pacific Islander, the always intriguing "other"...), and body type; then pick a desired meeting point, from Dunwoody to Decatur, Cabbagetown, or Piedmont Park -- whose open fields offer hasty escapes, provided you rolled up to your rendezvous on an ATV.
Once you're scheduled, CBD does ask for a profile, but you can leave it skimpy, and she can't access it 'til the date's already done and your behavior's convinced her to become the kind of girl who's afraid to go out on a crazy blind date again.