Definitions by Wiener Snitzel

vump 

A vump is a small, translucent animal part used as a filler for many food products that are low in fat yet satisfying. Most often found in hot dogs and meat stick products.

Some hot dogs are 99.9% meat and meat by products, 0.1% vump filler and rodent droppings.

vump by Wiener Snitzel April 24, 2003