"My meatball."

Translation: Ο κεφτές μου.

[polychrom]

Would "το κεφτεδάκι μου" also be correct?

[Hitoritana]

it should be, it's the same thing

[ShaoxuanLi]

is κεφτές a word originated from Turkish?

[HongNhiNhi]

Yes, from the word ''köfte'' which in turn derives from persian.

[ShaoxuanLi]

is there a rule of thumb on what gender foreign words are? For example, sandwich and cheesecake are neuter, and keftes is masculine. If i have to decide on a gender for a foreign word, what's a good way to do it? (Other than memorizing it)

[HongNhiNhi]

Usually loanwords are almost always assigned to the neuter '' το βίντεο'' '' το ταξί'' ''το αλκοόλ'' if they denote inanimated objects. Exceptions still exist though..