Permanent URL: https://mezzacotta.net/postcard/?comic=1098
Denying any responsibility for this is: Treehugger
The author writes:
What's the matter with Antoinette? It's as if that girl wasn't speaking English!
Spoiler for the many who don't know: American Sign Language and the Sign Languages of most Commonwealth countries are not mutually understandable.
P.S. Yeah, that joke was much too subtle for the hearing audience in Deafula.