Idiom: Wear Your Heart On Your Sleeve Posted on 13th November 201812th November 2018 by DoubleClick Wear Your Heart On Your Sleeve: is not something that you want to do, or display one’s emotions openly. Example: You’ll never be a good card player if you wear your heart on your sleeve. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Posted in Idiom and tagged Idiom W.