The act of taking your hand and making a chop motion on a persons shoulder near the neck area while saying in a loud manner, "Judo chop-HAI!"
1. Find a victim.
2. Creep up behind them.
3. Make sure palm/hand is flat and straight.
4 Raise your hand and chop the victim's shoulder, making sure it is close enough to the neck.
5. Say the phrase, "Judo Chop HAI!" While doing so.
6. Walk away.