When you're older and your balls sag far enough, you can shove them in your own arse and Ball Fuck yourself.
Strange episode of Ancient Aliens last night explained how widowed, Sumerian men (Sumerian Ball Fuckers) would shove their sagging balls up their own ass to achieve a release.
This is how we said it at my (five) elementary schools in California, c. 1978-1985.
If some girl at recess was on MY monkey bar, or stole my Members Only jacket from the Lost & Found, or popped my water weenie, my best friend called her out like this and there could be a fight after school: “MOTHER FUCKER TITTY SUCKER TWO BALL BITCH! insert name, e.g. TINA MAMA’s IN THE KITCHEN COOKING RED HOT SHIT!”