Fack-Shiggity-Shak
A swear you fake because you’re too lazy to say the real one, and you just want to sound tough.
I fack-shiggity-shak’d my brother when he took my snack.
He fack-shiggity-shak’d the teacher when he got caught cheating.
She fack-shiggity-shak’d the whole class when the bell rang.