The word "Spode" is a common insult used ridicule a motocross rider who is lacking severely in the skills department. Spodes are often easily found before they even get on the track. Just look for the guy with black plastic, cut fenders, baggy pants, Metal Mulisha stickers everywhere, and a bike that fumigates the track as it goes along. People who ride in street bike helmets while on a dirtbike are also spodes.
See "Mike Alessi"
Look at that guy with the Metal Mulisha stickers, what a spode!
Oh dude! That guy just stacked it in that corner, he must be a spode.
Look! That spode over there is wearing a street bike helmet on a motocross track.