As a public service, the USDA's "Focus On Hot Dogs"

Ladies and gentlemen, your government at work...for YOU:

http://www.fsis.usda.gov/OA/pubs/focushotdog.htm

"They are link-shaped and come in all sizes -- short, long, thin, and chubby."

""Frankfurter, Hot Dog, Wiener, or Bologna With Byproducts" or "With Variety Meats" are made according to the specifications for cooked and/or smoked sausages (see above), except they consist of not less than 15% of one or more kinds of raw skeletal muscle meat with raw meat byproducts. The byproducts (heart, kidney, or liver, for example) must be named with the derived species and be individually named in the ingredients statement."

"The definition of "meat" was amended in December 1994 to include any "meat" product that is produced by advanced meat/bone separation machinery."

"Although all hot dogs are fully cooked, you should reheat them and make sure they are steamy hot throughout."

Weren't they part of the seven dwarves...Short, Long, Thin, Chubby and Steamy?

Nothing in the article about hooves, snouts or other approved animal parts falling under the general heading of "meat."

As a BONUS...bask in the magnificence of the USDA Food Safetymobile. Holy dysentery, Batman!