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2.
A disastrous event that generally occurs during sex between an inexperienced and/or pornography driven male and a poor, unsuspecting female. When the participants are gearing up to do the "deed", the male deems it necessary to take his erect penis, and proceed to SLAP the females vagina in an ill-thought attempt to arouse her.

Consequences of this action are generally yelling, cringing, and prompt cease of sexual activity. Extreme cases will lead to injury, breakups, or imprisonment.
"We were messing around, making out, and getting ready to do it, and all the sudden he started BOX BOXING me! It hurt! I was completely not in the mood after that!"
by Emort June 18, 2008
 
1.
The art and/or sport of blindly running into people with a cardboard box on your head.

Howto:

1. Go to a large, open field with 4+ friends. Bring large cardboard boxes that, if placed on the head, would reach down to one's lower torso/waist.

2. Everyone get into a large circle, facing each other

3. All participants place a large cardboard box on their head. Brace front of the inside of the box with your arms, so that if you are in a full-on collision, you will not get a head injury.

4. SPRINT IN ANY DIRECTION AND HOPE YOU HIT SOMEONE!

The intenseness of this sport is from the adrenaline of never knowing when you're going to be hit. Peeking out of the bottom of your box at times of rest is permitted AT YOUR OWN RISK.

I am not liable for any injuries that happen due to this definition. :D
While Adam, Daniel, Todd, and I were boxboxing last weekend, Adam hit Daniel and Daniel was so un-prepared that he was airborne for five feet.
by KillerOfBlueberries November 10, 2009