A "hose connection" refers to the point where a hose is attached to something, like a faucet or a nozzle. It allows water or other fluids to flow through the hose to where it is needed. Full definition
Many pressure side models usually operate with an additional booster pump that often require a separate hose connection in your pool wall. (poolcleanerlab.com)
Since the water is coming from a «hole in the engine», I think we can cross off water hose connections. (mechanics.stackexchange.com)
O - ring seal and fuel rail crossover hose damage may result in the fuel rail hose connection leaking fuel. (carsdesk.com)