How can I remove the Facebook for Android app completely?

[*DUHHKIDDFRESH*]

I was using my aunts Sprint Android and I logged into Facebook, not knowing that the Facebook App was synced to her phone/it's only meant to be used by the owner of the phone. Then I saw that I couldn't sign out/didnt know how to, so I just deleted the app. My aunt put the app back up under her account, but my notifications are still popping up on her phone. How can I stop this from happening, so HER notifications will pop up instead of mine? I've already uninstalled the app and hit menu to log out and all! Help? Please and thank you!

[SHAV]

Well, that should be simple. Deleting the app does not necessarily mean that you have signed out.
To log out, click the options button while you are on Facebook for Android. You'll see an option:'log out'. Tap that and you will be safely signed out. Open the applications folder, and click on facebook. Make sure to delete all cookie data, and all browsing history.
The next time you open the app, you will be prompted to log in, and ask your aunt to do so with her credentials.