K is for Kahuna

: a preeminent person

“Who’s the big kahuna ’round these parts?” Clarabelle growled at the shady saloon denizens as she pounded her fist threateningly into her hand. She had returned to her steed moments earlier only to find a parking violation attached to the saddle. Clarabelle was in a spot of bother. One more ticket and her horse would be impounded.