One who thinks that he/her are
punk, but really they are not and they listen to
simple plan and good
charlotte. Can also be used in reference to anyone who is trying way to hard.
Allister Bean: dude check out my old
school connies and my hardcore simple plan t-shirt.
Random: clearly your beanin it....
or
Vinnie: Hey
tony, check out my fully sick sub-woofer and ghetto blaster.
Tony: Vinnie your not even Italian, stop beanin it....