||April 20, 1990 at Art of Ears Studio in San Francisco, U.S.
||Green Day, Andy Ernst
|Green Day chronology
Slappy is the second EP from Green Day, released in the Summer of 1990.
- Aaron – backing vocals, teeth noise on Knowledge
- The dog's real name is Mickey. Slappy was a nickname given to her by Jason Relva.
- Billie Joe's name is incorrectly spelled as "Billy" in one instance in the "Green Day Bits:" section.
- "Why Do You Want Him?" was the first song Billie Joe wrote.