Top Definition
Juicy, plump, mystery meat that looks eerily similar to both a hot dog and male genitalia. Typically sold at gas stations, such as Speedway. Named for the roller grill on which they are cooked. NOTE: Be careful when ordering a "roll-a-dog", because it is also a sex move often performed by hookers in the back of such establishments.
That roll-a-dog be looking PLUMP!
by Mr. Meows July 25, 2012

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