Bugscuffle
I went 'googling' ..... found out that "bella/bello" is indeed beautiful in the romance languages. Only reference I could find re: "coola" was the Italian word 'culo' m. (vulgar) ass. Seems you might be right about a similar word in Spanish.
However, I wouldn't bandy your definition about in Bella Coola. The natives and later Norwegian settlers might take umbridge.
Now, back to "Wild Bunch North" ..... ;>)
I stumbled into a video shop t'other day and asked if they had a copy of the "Wild Bunch". The clerk walked right over to it, a new enhanced DVD 'director's cut'. I asked if it was for sale and it was. Gotta set aside some time to watch it .....