Wild horses couldn't drag (one) away (from something) American British informal
To indicate one who is determined or dedicated to completing something and can not be induced
I have decided to invest a lot of money on the stock market, so even wild horses couldn't drag me away!
Wild horses couldn't drag him away from alcohol because he has got addicted.
Jane fell in love with her so that wild horses couldn't drag him away.
A humorous way of saying that what one has said is just what they acknowledge and may not be entirely accurate
Mike: Have you returned from your vacation on the beach? Your skin seems to get tanned.
Jenny: My skin is always dark. That's my story and I'm sticking to it!