Peck/pek/ Definition 1 of 4Pro Tip 1/3Affectionate Gesture Used to describe a small, friendly kiss without romantic implication. After the play, she gave each cast member a peck on the cheek. Pro Tip 2/3Casual Farewell Commonly used to indicate a quick kiss goodbye. He gave his daughter a peck on the forehead before leaving for work. Pro Tip 3/3Not Romantic It's not usually used to describe passionate or long kisses. They exchanged a peck on the cheek, not a full kiss, in greeting.