A Hot dog is a popular food from Earth consisting of a frankfurt in a bun often served with ketchup and mustard. After SG-1 brought Cassandra to Earth, Captain Samantha Carter offered Cassandra a hot dog. (SG1: "Singularity")
Docter Mckay refered to the hot dog as being an important thing.
In 2009, Camile Wray used a Long-range communication device for a meeting with the staff at Homeworld Command. After the meeting she took a walk with Dr. Carl Strom who asked if she wanted a hot dog. (SGU: "Earth")
- Hot dog on Wikipedia