double bluff 
noun
An action or statement that is intended to appear as a bluff but is in fact genuine.It also has something of a double bluff about it as a further public denial that FF does not envisage revisiting the glory days of that 1977 landslide....
- It's entirely possible that the attack will line out the way they're named, just like in a smooth double bluff that looked completely implausible against Wexford.
- What Collis has orchestrated is a cunning double bluff.