fakeroo
A fake mobile phone app. Note: not an existing app that claims to do something and then, doesn't but, rather, a non-existing app that seems real.
I just read an article about this amazing app and when I tried to download it to my phone, I realized it was a fakeroo.
Jersey fakeroo
While driving, to set your turn signal to one direction and then to turn or change lanes in the opposite direction
That guy in the Camaro pulled a Jersey fakeroo and plowed into the guy who was trying to pass him