nah, its just a 方言 for chicken.
people here wouldn't understand what it is :D

there's a bunch of other words unique to 関西　area like
ほかす⇒すてる
おおきに⇒ありがとう
and かしわis one of them!

i wonder why they use the word かしわ＾＿＾??

I knew it is chicken because I checked the menu from the internet before going there...so it is Kyoto chicken?!

you knew what かしわ(chicken) meant @o@?
I've never heard that word in tokyo!
(My family is from kyoto so I know what it means.)