Anyone that has a duelly and a tall trailer.

[soapbox] Please... it's "dually" (or alternatively "duallie" or even "dualie"). The etymology refers to a truck with dual wheels on the rear axle, thus the term "dually".

Unless he is using the truck to fight duels, that is... What would it be -- hood ornaments at 40 paces or something? [/soapbox]

Not that it really matters, of course.

tanstaafl.