Synthetic cannabis, also known by the brand names K2 or Spice. Derived from descriptions of its smell and look, as it looks like hamster food and smells like gummy candy. Hamster candy is often used when one is aware of an upcoming drug test as an alternative to natural marijuana because hamster candy precludes a positive test.
Kevin: "Would you like to split a spliff with me?"
James: "No, I have a drug test coming up, so I'll just stick to hamster candy."