>>70918872In case you're ESL:
The onomatopoeia of a chicken making noise is buck.
Another name for a male dear is buck.
100 pennies is $1.00, or a buck. So 200 pennies, is $2.00, or two bucks: buck buck
Mori thinks, at this point in the joke, that Kiara is just asking the chicken things that the correct awnsers are just the normal noise a chicken makes, a la buck
Morri expresses her disbelief at this point.
Kiara convinces her to keep listening. And then the chicken, instead of continuing to make chicken noises, bucks the trend by speaking in perfect english.
This is sudden and unexpected- to both Mori and the reader.
