Because nobody would drink it if it was called nut juice.
A: Realising the horse is alive and well and how much did I drink last night !
A religion drinks wine and a cult drinks Kool-Aid.
Nut juice" wasnt very popular.
Because if they called it Nut Juice nobody would buy it.
They are both nuts.
When it falls to the ground, it knocks the 'ell out of it.