Hawaiian pidgin for something out of the ordinary big.
Jr boy went scurrying up the stairs crying and confronted his mother.." eh Ma, I hate honey girl..she always cheat, she get funny kine style, she went win all my marbles because she went use dis bumboocha size marble fo bus'up da pile of marbles inside da circle n she went cheat pilau style because her bumboocha was one bowling ball!" His mother replied, "How u going act if she play li'dat?"
Large Hawaiian or Polynesian woman. Not a term of endearment.
Whooa brah! Look at da thighs on dat bumboocha.