When a person places their two handstogether and sneaks up behind someone, squats down and jabs their tip of their fingers up their anus through pants or whatever their wearing, causing the victim to have a saw anus.
Suspect: sneaks behind victim.
Victim: standing, talking.
Suspect: squats down and puts hands together.
Suspect: aims hands and jabs fingers up but
Victim: AHH! WHAT THE FUCK WAS THAT FOR?!!!!
Victim: ahh, my ass(anus) is soo sore.
Suspect: Hahahahah Victim: Fucking, poo jabber!