Interesting no content semantics post. (<LC)

"A bluff is a bet you make when you dont want a caller".

You are playing NLHE and have somehow misjudged your preflop raise, perhaps with a misclick.

You hold AK and the flop comes Kxx 2 hearts. Your single opponent turns his cards over and shows you a flush draw. He doesnt particularly understand the odds and after the flop, he will call when ahead and fold when behind. You turn your cards over and move allin for 1/10 of the pot.

Is this a bluff?

It may be a bluff by the definition that you posted, but that just reveals the inadequacy of the definition.

Not wanting a call is a necessary condition of a bluff, but it is not a sufficient condition.

Your definition of a bluff is more the strategy of a bluff than it's actual definition. Your example is not a bluff.

I think "A bluff is a bet made to push someone of a better hand" would be a better definition, no?