_Today's concept is a little bit complicated to me to explain because I don't know if you have a similar phrase.
"Ci fai o ci sei?".
We ask this rethorical question when in our opinion someone always repeats the same mistake or forgets to do something. For example if I ask to my friend to close the door when he is leaving and he never does it I could say to him "ci fai o ci sei?" as "are you fooling me?".
I also know that in England, someone teases the Irishes saying "He's Irish or something?".
Maybe this could be the interpretation of the phrase, but I have nothing against the Irishes :)