A consequent is the second half of a hypothetical proposition.
In the standard form of such a proposition, it is the part that follows "then".
[1] In some contexts, the consequent is called the apodosis.
is the consequent of this hypothetical proposition.
"Fish speak Klingon" is the consequent here, but intuitively is not a consequence of (nor does it have anything to do with) the claim made in the antecedent that "monkeys are purple".