Equivocal Barbs: A Constrained Nonsense Rhyme

'Barbies' be equivocal. E.g., here's three plus three.  
One's Bobbie and the Riders of his (Benson's) B-Bar-B. 
Two's Zanzibar, between the Wami delta and the sea.  
Three's"Butcher" Barbie -- christened Klaus -- who's no one's cup of tea.  
Valeria Lukyanova’s four: human Barbie, she.  
Five's Donald Drumpf, who tweets the barb (he shuns the repartee).  
Six? Mike Pence walks into a bar because he needs to pee.  
Yes! 'Barbie's are equivocal. (Now, let's grab Arby's kea.*)

     * A kea is a species of New Zealand parrot. It appears Arby's
does, indeed, "have the meats" -- even the more exotic cuts.