Bahoochie is Scots for bottom, bum or backside. Pronounced ba-hook-ee, it is used in a friendly manner, often with children. Since Scots is a spoken language there are different spellings of bahoochie including bahookie and behouchie.
Bahoochie was chosen as the spelling because “Animal ABC; a Scots alphabet by Susan Rennie” has B for ‘birlin bears wi big bahoochies’. If you are wondering, this means twirling bears with big bottoms.