Avril Not Pregnant Just a 'Fat Ass'

12/10/2008 11:45 AM PST

Avril: Not Pregnant, Just a "Fat Ass"

Avril Lavigne understands where those pregnancy rumors are coming from -- it's the same place she had her head buried for so long.

FYI -- The pregnant rumors pretty much began after this picture was taken of Avril inside a grocery store Saturday. Sure looks like she has a bump, but really, who the hell knows anymore.