what does these Japanese saying mean? see details?

Question

BOKO NO NIHONGO WA HETA DESU.?

Answer 1

"My Japanese is bad."

BOKU means "I." Men usually use it to refer to themselves. (I'm a girl, so I use "WATASHI" instead.)
What makes this "I" into "My" is NO that follows BOKU. You can put this NO after any pronoun to make it into its possessive form, like your, his, her, our, their, or after pretty much any word, like your name, MEandB, to mean "MEandB's."
NIHONGO means Japanese, with NIHON meaning "Japan" and GO meaning "language."
WA would be "is" part and HETA means you are not good at doing something.
DESU at the end... you can actually drop it and still mean the same thing. It kind of adds a tone of finality to what you say. It also makes the sentence sound polite.

Answer 2

"boku no" = my(men speaking)
"nihongo" = japanese
"wa" = is
"heta desu" = bad

Answer 3

You are no ... Japanese man......

I think .IT's been a while