Odd Language #83: Too Dumb

‘”The Church’s breeders were successful, technically,” Zog said, “but unfortunately the resulting chicken was literally too dumb to eat. …”‘ — _Variable Star_, p. 132

The issue: From context, “too dumb to eat” means that the chicken was so stupid that it was unable to eat. Another meaning is that the chicken was so stupid that it could not be eaten.

And how was your Christmas turkey?