1 definition by Rafster

An almost inexplicably majorly solid erection that a guy gets once in a while. It is so hard and so major that it belongs on the body of a porn star pumped up with viagra. These boners are awesome and make guys feel real proud when they occur during sex.
"I have a MAJOR porn star boner! AWESOME!"
by Rafster April 20, 2007
Get the porn star boner mug.