Tengo una tía que toca la guitarra
 

¿ Alguien podría explicarme lo que quiere decir este dicho por favor? :)

As far as I know , it´s not a saying. The translation should be, i have an Aunt that plays the guitar, Do you have a context ?

Not really,sorry :( I found it on a site containing some exercises in proverbs and such but it did not provide any additional information.

This is said when something just mentioned by another doesn't have anything to do with the topic at hand.
Look here for a couple of translation ideas in English.

That's how I've heard it used.

Ok. I understand now. Like saying what the hell do you mean in a more polite way.

Yep. We use other phrases than the two listed in the idiom dictionary, to be sure.

Haha.. I see.. Well as usual really right?..It seems expressions in socalled idiom books and dictionaries are rarely used in actual daily life.. :)

I think I've once heard 'What's that got to do with the price of eggs' - but that was on tv. For the life of me I can't imagine people using it very frequently in daily life. :D

¡Thanx! :thumbsup:

By the way, does anyone know if this expression is used often in Spain or Latin countries? (I'm guessing not, of Robindesbois doesn't recognize it?)

I've heard people just say "¿Y?" This means the same thing as "Who cares?"

As far as I know it's not an expression we use in Spain. I would say something like ¿Y a qué cuento viene eso?