Flooded Hospital

Okay, listener, you might not get this, but Explain bear is here to help your tiny brain. The joke plays on the word "vegetable" which can mean a plant (like in soup) BUT it can also be a derogatory term for a person in a coma or a persistent vegetative state, especially if they're hooked up to machines in a hospital. So, a "flooded" hospital implies a lot of patients are like "vegetables" floating around. Get it? You probably still don't, you silly goose.