YOU SAID:

I'm gonna beat my meat so hard its gonna fly off like a helicopter blade

INTO JAPANESE

私はヘリコプターの刃のように飛び立つほど一生懸命私の肉を打つつもりです

BACK INTO ENGLISH

I'm going to hit my flesh hard enough to fly like a helicopter blade

INTO JAPANESE

私はヘリコプターの刃のように飛ぶのに十分なほど強く私の肉を打つつもりです

BACK INTO ENGLISH

I'm going to hit my flesh hard enough to fly like a helicopter blade