To crash your body into someone else's body due to a rush of excitement, which may or may not result in knocking the other person to the ground. This term was created in honor of a contestant who almost knocked Ryan Seacrest down on the talent show American Idol. The term began receiving prominence after the video went viral on the web.
"When I found out I won, I was so excited that I Von Hugel'ed the guy giving me the trophy."
"Sorry man, can't believe I Von Hugel'ed you in my fit of excitement. Let me help you off the floor."