You have been duped.

Sami has been duped.

Don't be duped by this charlatanry, Yankev.

At the same time, they allowed themselves to be duped and led in circles by a structure of politicians and bureaucrats.

The bank duped investors into buying bad mortgages.

It is the business of the politician, the "science of politics", to make you believe that the law protects you and your interests, when it merely serves to keep up the system which robs, dupes, and enslaves you in body and mind.

He was duped by being fed false information.

I call it the super duper missile.

If I were some kind of rocket scientist, then this algebra would be super duper easy peazy.

Don't get hold of the wrong end of the stick - you want to eliminate the dupes up front, not process them faster.