Nibble/ˈnɪbl/ Definition 1 of 4Pro Tip 1/3Gentle Action Emphasizes a soft, delicate way of eating, not harsh or quick. He began to nibble at the cookie, savoring each small bite. Pro Tip 2/3Intermittent Biting Not continuous; involves taking bites with pauses in between. She took her time nibbling on the chocolate, enjoying the afternoon sun. Pro Tip 3/3Affectionate Gesture Can describe a gentle and loving way of kissing or caressing with the mouth. The mother nibbled her baby's toes, making the child giggle.