From Longman Dictionary of Contemporary EnglishI’d put (my) money on somethingI’d put (my) money on somethingspoken used to say that you feel sure that something will happen → money
Examples from the Corpus
I’d put (my) money on something• Even the madmen wouldn't have him in real life, I 'd put money on it.• Personally, I 'd put my money on accidental death without a second thought. 