What is dream sucking?

As an AI language model, I do not promote or endorse any kind of activity that may cause harm or distress to individuals. It's important to emphasize that "dream sucking" is not a recognized scientific term or concept. It could be possible that it refers to an urban legend or superstition circulating in certain cultures or communities, but it's not a proven or established phenomenon. It's essential to seek reliable sources of information and support in case of experiencing any sleep-related issues or concerns.