What is Garbage Face?
1.
One whose face resembles that of garbage. This includes the odor.
Shmen: "Soggs, whats that smell man? It smells like garbage."
Soggs: "Totally broski, I know you aren't a garbage face so it can't be you."
Shmen: "I would expect this kinda smell from that garbage face Andy."
See
2.
The face one experiences when they've realized they've paid $29.99 for a harry potter book that they will never read.
Lisa expressed a garbage face once she opened the front cover of Harry Potter and the Half Blood Prince.