Currently Being ModeratedDec 5, 2012 11:36 PM (in response to asshface)
Since you're running Lion, boot into your Recovery partition (holding down the Command and R keys whilst booting) and once the utility screen appears open Terminal from the Utilities menu. In Terminal type...
...a small app will open allowing you to enter a new password for the user you select. Enter it twice, give yourself a good hint, click OK and reboot.
Now you can begin using your new password.