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dab v. to put a foot down in order to catch your balance on a difficult section of trail. "I made it without crashing, but I had to dab once."

death cookies n. fist-sized rocks that knock your bike in every direction but the one you want to proceed in.

death march n. a ride that turns into an investigation of your endurance limit. "The bridge was out, and I had to go all the way back the way I came. So the morning's nice, easy ride turned into a Bataan death march."

dialed in adj. when a bike is set up nicely and everything works just right.

digger n. a face plant. "Look at that guy on that gnarly single track... he's going to go over the bars and do a digger."

dirt bike n. an off-road motorcycle. Usually louder than MTBs.

d-o-g adj. Down On Ground, crashed.

drillium n. any part with lots of holes drilled in it to make it lighter.

dual boinger n. a full-suspension bicycle.

dual-track n. a dirt road used by four-wheeled vehicles rarely enough that their tires have made ruts that became parallel singletracks. Also called doubletrack. See singletrack.

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