monkey bite
A red, bruise-like mark left by gently sucking or biting on someone's skin while kissing it. I was so embarrassed when I realized that the woman I had hooked up with left monkey bites all over my neck. Hey, I have an important meeting in the morning—don't go leaving a monkey bite where everyone can see it!
monkey bite
n. a kiss that leaves a blotch or mark. (see also hickey.) Who gave you that monkey bite?