biscuit king
A biscuit king is someone who is typically running their mouth in a foul way but when he needs to cover up, he uses "biscuit" to replace his cuss words. Many people call him Michael
The biscuit king, while trying to hide his bad language, said "Mother Biscuit"
the king's biscuits
Something of a very high calibre. Fit for a King!
Damn, that Tortoise concert was the king's biscuits!