From Homestar Runner Wiki
Hamburger Shampoo is shampoo that is "Like a backyard BBQ...on your hair!" According to the name, one would assume that this shampoo smells like a hamburger and, of course, like a barbecue. It's also "Geddup Noise approved."
Curiously, the bottle more closely resembles a laundry detergent bottle than a shampoo bottle.
- Debut: Email geddup noise