What does Gingdiska mean in Japanese?

The Word 'Gingdiska' doesn't exist in Japanese, nor does it exist in English. Perhaps you meant 銀ですか (gin desu ka) which means something along the lines of "is it silver?" in Japanese.

A common phrase learnt by students of Japanese is 元気ですか (genki desu ka) which means "how are you?". The pronunciation is somewhat like what I imagine 'Gingdiska' would be pronounced like.

Pronunciation

銀ですか (gin desu ka) - "geen deska"

元気ですか (genki desu ka) - "gehn-key deska"