Characters
Listen to 'em. Watchin' my television. Sittin' on my couch. You better not be in my ass groove!
— Homer · The Simpsons

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Homer bristles at people making themselves at home. Watching his television and sitting on his couch is bad enough. The real outrage is the ass groove, the dent his own backside has worn into the cushion, treated as sacred property.
Context reviewed