Damn nigga you don't know wut blue balls is? No offense but that's weird. How old are you. Blue balls is like when a girl sort of teases you to tha extreme. She might suck yo dick a lil or ride it for a second but not to where you climax. Then you get no more from her. So yo shit hurts from the anticipation and cuz you ain't get yo nut.
^^^^ Roughly explained.