polish a turd การใช้

I won't waste my time trying to polish a turd.
In Noel's words : " We were trying to polish a turd ".
In an interview, Arden denied it was cheating : " I had a saying, you can't polish a turd.
You liked him immediately because he was enthusiastic and he talked about what he could do and what he couldn't do and whenever he said 'I'll do this, I'll do that' he did and it came true . " The band's first hit was obtained by " chart-fixing ", Arden denied it was cheating : " I had a saying, you can't polish a turd.