Steal somebody’s heart Definition 1 of 2Pro Tip 1/3Romantic Context Usually used in romantic scenarios where strong affection or love is expressed. After the romantic evening together, he completely stole her heart. Pro Tip 2/3Metaphorical Usage It's metaphorical and does not involve actual theft, but the capturing of affection. With his gentle nature, he stole her heart. Pro Tip 3/3Instant Impact Implies a sudden and strong emotional effect that leads to love. The moment she walked in, she stole my heart.