Definition: A milder version of POS; sometimes refers to a piece of junk, but may also used as an exclamation towards someone else, i.e., in online gaming, when someone sneaks up behind you and kills your character, you might type, POC! Example
You may have noticed that your lips turn purple or blue in the cold, or you may have seen a baby, an elderly person or someone else with bluish or purplish lips. In many cases, this type is caused by cyanosis, which is a discoloration of a part of the body resulting from a lack of oxygen in the blood.
7 natural remedies to lighten dark lips. There are many factors that can cause your lips to go darker. One of the main causes of dark lips is sun exposure, other causes like UV rays, allergies, smoking, caffeine intake and hormonal imbalances can result in such ghastly looking lips. Image: Flickr.