A boner that does not let you concentrate on anything but fifth grade fantasies and does nothing but remind you of the fifth grade and confuses everyone around you
person 1:"I have a raging fifth grade boner right now"
person 2"what the fuck are you talking about??"
person 2"what the fuck are you talking about??"
by Eddoooo1234 September 27, 2011
Get the Fifth grade bonermug.