dog walk \o7 n\f7 . when a monster truck, moving sideways, goes out of control; occurs when front and back wheels are pointing in opposite directions.

* full pull \o7 n\f7 . in the tractor pull event, when a weighted sled is dragged 200 feet to the finish line within a prescribed time limit.

* land yacht \o7 n\f7 . 18-wheel trailer used to transport trucks between events.

* mud bog \o7 n\f7 . four-wheel-drive funny cars that compete by racing through mud or sand. * mud dog \o7 n\f7 . mud bog driver.

* travel \o7 n\f7 . distance between ground and truck's undercarriage. "With our new suspension system we've increased our \o7 travel\f7 by six inches over the las year."