I think the joke is that the two cakes got mixed up, each sent to where the other was supposed to go.
I wonder if this cartoon was inspired by the Momus song “Hippopotamomus.” It was about two hippos, not two dinosaurs, but what happens to them is identical to what happens in this strip. https://www.youtube.com/watch?v=JFjvzT4i4gg
The Nancy Carbonaro interview is complete fiction, written as a parody, and has absolutely no basis in fact. The original “interviewer” said so in an August 2018 Facebook thread about this topic that appeared on the “How to Read Nancy Reading Group” page there. Go to that page and type “Carbonaro” in the “Search This Page” box for full details and to see all comments. The article on this GoComics page that treats the interview as fact should be removed.
Remember when Nancy was eight years old, instead of a surly Millennial?
Weirdest place for Ernie’s signature ever…
If a moderator reads these comments: Would you please ask someone at GoComics to change the Nancy-and-Sluggo character illustration that appears at the top right of this page to one that was drawn by Ernie Bushmiller? It is wrong to have a Guy Gilchrist illustration there, because these strips are not written or drawn by him. Thanks.
Remember when the punchline to this gag was that Nancy’s singing drove the mice out of Sluggo’s shack?
Looks like Olivia officially has run out of ideas.
Once again, not a bad gag, but Olivia’s backgrounds remain embarrassingly bad — not simply because her use of perspective is bizarre, but because areas such as the kitchen above seem to have been drawn by someone who never has seen a kitchen.