tintintintin76  +  610686 Sat, 13 Dec 08 08:16 PM well, I'm not sure if it's an idiom. I'm watching "In cold blood" and there is phrase "I don't know gold dust from diarrhea" and after that they are talking about "prospecting gold". Does the phrase mean "I cannot tell gold dust from diarrhea" or something else? Thanks  in advance! tintintintin76 Joined on Sat, Dec 13 2008 New Member 02 Idioms, Speaking, Chat, Friendships

	Clive  +  610687 Sat, 13 Dec 08 08:26 PM Hi, Welcome to the Forum. I'm not sure if it's an idiom.No. It's not something that is commonly said. I'm watching "In cold blood" and there is phrase "I don't know gold dust from diarrhea" and after that they are talking about "prospecting gold". Does the phrase mean "I cannot tell gold dust from diarrhea" Yes or something else? Such expressions are often used figuratively, with the meaning of 'I am not a smart person'. They are often followed by 'but', eg I can't tell (ie distinguish the difference between) left from right, but I know that you're a liar'. Best wishes, Clive Clive Joined on Thu, Oct 28 2004 Canada Veteran Member 29,581 El tango argentino es un pensamiento triste que se puede bailar (The tango argentino is a sad thought which can be danced) Enrique Santos Discépolo Idioms, Difference Between, Speaking, Chat, Friendships

	tintintintin76  +  610688 Sat, 13 Dec 08 08:31 PM WOW! I didn't think I could get such a prompt reply and a so detailed one!! Thank you so much, Clive! And this is an amazing forum tintintintin76

	khoff  +  610692 Sat, 13 Dec 08 08:52 PM Wel you can't count on alwyas getting a reply in ten minutes -- but we do our best.  Welcom to the Forum! khoff Joined on Sun, Mar 6 2005 Senior Member 3,264 Native speaker of American English (but not a grammar expert)