Japanese word that i can't find...

...in any dictionary, be it online or in the books i have.
The sentence is -
"Yappa Bokko ha(wa) sugeeya"

So, what 'sugeeya' means?
tried to find the parts of the words in case it was two words (no spaces makes it hard), but to no avail.
Pretty please?

>>5
Hey, don't be so aggressive, please. I've didn't notice that thread, and the further questions will be forwarded there, so no worries.
But one last question that i'll ask there.
sugoi, i understand. But the -nda ending i don't. What that means?