Definition and synonyms of put your heart into something from the online English dictionary from Macmillan Education. This is the British English definition of put your heart into something.View American English definition of put your heart into something. Change your default dictionary to American English. Definition of pour out one's heart/soul. : to speak very freely to someone about one's private and most deeply felt emotions He'll pour out his heart/soul to anyone who will listen. Jul 29, 2013 · If "you give heart to" a person it means you're encouraging them, especially if they're feeling discouraged. It's not the same as if you "give your heart to somebody," which means you allow yourself to be vulnerable due to your love of that person. He knows how annoyed you can get with little things, he knows how quickly you can finish a pint of ice cream, he knows your favorite movies and your favorite songs and how you cry when you’re really happy but not when you’re really sad. He knows about your mother and about your father. He knows everything about you, now.