1) an erection lasting more than 4 hours that you should be seeking medical attention for but your girlfriend had barricaded the door and prevented you from leaving
2) the hardest erection you ever had in your life
boyfriend: I think I should call the doctor right now since my dick has been hard for 7 hours
girlfriend: There is no way in hell that I am letting you leave this bedroom with that viagrection, at least, for another couple of hours