"dupa ya ya" - you probably meant "dupa jaja" corresponds with "ass balls (of course the balls that almost every guy has)"
"stri-ga WIT-zah" - probably "strzygawica" - I think I've heard this word somewhere but I totally dont know what it could mean. Maybe it exists only in local, colloquial speech.. I know only that a Polish word "strzyga" (stri-ga) means "a vampire" in English, but it is hardly used nowadays.
"CHO-tah" is "ciota" and it means "a fag"
"hull-yet-ah" - nothing has come to my mind so far - sorry
Hope it will help you somehow.