[pmontra]

I never heard this Turkish expression, only the Arabic one. I always lived in the Milan area. Where is it used? "E che" sounds central Italy.

[jaclaz]

Sure, the "E che" form is tuscany and central Italy (as often happens considered archaic by someone), the "parlo turco" is italian alright:

http://www.treccani.it/vocabolario/ricerca/Parlare-turco/

A more "neutral" Italian would be "Parlo forse turco?".

Curiously, it is a sentence used in literature by Andrea Camilleri which should mean that the form is also in use in Sicily.

JFYI ;-) Mario Vigorone [1980]:

https://www.youtube.com/watch?v=4yANFI1bs9c

[pibi]

Also the "parlo arabo?" is listed on treccani: http://www.treccani.it/vocabolario/arabo

BTW, I agree with the other comment that this is more common in the north.