Definition of "Concoction" :

noun: the act of creating something (a medicine or drink or soup etc.) by compounding or mixing a variety of components

noun: the invention of a scheme or story to suit some purpose

"His testimony was a concoction."

noun: an occurrence of an unusual mixture

"It suddenly spewed out a thick green concoction."

noun: any foodstuff made by combining different ingredients

"He volunteered to taste her latest concoction."