2 Verbs to Use for the Word buttock

A 'man-eater' eats the buttocks, shoulders, and breasts first.

My loins into my paunch like levers grind: My buttock like a crupper bears my weight; My feet unguided wander to and fro; In front my skin grows loose and long; behind, By bending it becomes more taut and strait; Crosswise I strain me like a Syrian bow: Whence false and quaint, I know, Must be the fruit of squinting brain and eye; For ill can aim the gun that bends awry.

2 Verbs to Use for the Word  buttock