To use chopsticks or anything that is long, strong, and firm enough and swiftly shove up one's anus. The with great force spread apart in opposite directions causing the victim great pleasure/pain (what's the difference?)
Then if you want you can shove your penis or foot inside, depending on which is larger.
Me:Wasn't that dongchi great LeAnna?
LeAnna:Well I wouldn't know, you gave it all to tila =*(
Me:Oh, my bad...