Characters
That was my skull! I’m so wasted!
— Jeff Spicoli • Fast Times at Ridgemont High

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker announces, startled, that something was their own skull, then declares they are thoroughly wasted. The pair of exclamations has a dazed, comic feel, treating the skull mishap and being wasted as things worth announcing with loose abandon.
Context reviewed