Help! This is driving me crazy!

O.k. I know it's rock. And it goes something like "my girlfriend is badass,she's doing shot's.........you can smack her ***. You know if you mess with her she'll **** you up.",or something like that. That's all I can remeber. They sound like nickelback,but it's not on youtube,or I just can't find it.

Maybe "Theory of a deadman - Bad girlfriend ?
http://www.youtube.com/watch?v=U_YfhloMdxw