Drunken shrimp is a popular dish in parts of China, based on freshwater shrimp that are often eaten alive but immersed in ethanol to make consumption easier. Different parts of China have different recipes for the dish. For example, the shrimp are sometimes soaked in alcohol and then cooked in boiling water rather than being served still alive, and in other recipes, cooked shrimp are marinated in alcohol after they are boiled.
You shouldn't trust any food that moves while you eat it. It can cause health complications, consuming uncooked freshwater shrimps may be a serious health hazard due to the risk of paragonimiasis. Paragonimiasis is a food-borne parasitic infection caused by the lung fluke. It probably wouldn't be very wise to just jump into eating raw drunken shrimp, just stay with the sober and cooked ones.