Just wondering since im a girl but can a guy give me an example of a boner since il never know for myself but What is one example you can give me thats similar to the feeling of a boner besides a rock?

OK, I hope you have a good imagination . . .

Have a friend (girls are fine) hold her two fingers (index and middle) on both hands out, like they are pointing to something, and not spread out. Then, have her touch the 2 fingertips of her right hand to the first two fingers of her left hand.

She should then be able to push and slide one set of fingers down alongside and between the other set of fingers, so all four fingers are touching each other. If you close your eyes, and grasp her set of fingers, it will feel almost identical to a boy's "boner".