Top Definition
Any young or old car club member who has dropped their vehicle so close to the ground that no matter how slow they go over a speed bump the moment that the rear wheels hit asphault again the back end of the car slams down hard causing the driver side airbag to inflate and knock the driver out cold.
If that fool over their thinks he's getting over those big ole bumps in that scraping mess with out a spedunk puffer knucker of the year award coming his way tell me to stop dialing 911 now. Either way get his trophy out the trunk.
by Shawn Gabriel Archuleta May 18, 2008
5 Words related to spedunk puffer knucker

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