b-sak
a softer, less gross version of ballsack, for when you're too polite to say it loud
My cousin said b-sak in the church. The priest gave him a warning and told him to pray more.
I told my boss he was a b-sak. He didn't fire me, but he gave me a raise... maybe.
My friend called my dog a b-sak. The dog growled and tried to bite him.