I'm not convinced of that, let's see what BIGLOOK has to say on that.
I lived in HI for about 14 years, when I read that stuff about 0thugga’s grandmother, it was known to me. Tutu does mean Grandma and tutukane means Grandpa. Kane (pronounced “kah ney”) means “man”.
I was trying to remember Grandpa and I just cound this silly little list, there are tons more Hawaiian pidgin sites:
http://www.to-hawaii.com/hawaiian-pidgin.php